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PHP Redis，phpredis
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PHP Redis，phpredis
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Jun 13, 2016 am 08:51 AM
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PHP Redis，phpredis

<span>   1</span> <?php <span>if (!<span>defined</span>('BASEPATH')) <span>exit</span>('No direct script access allowed'<span>); 
</span><span>   2</span> <span>class</span><span> Myredis
</span><span>   3</span> <span>{
</span><span>   4</span>     <span>//</span><span>redis所有已知命令：
</span><span>   5</span> <span>    //append,auth,bgrewriteaof,bgsave,bitcount,bitop,blpop,brpop,brpoplpush,client-kill,client-list,client-getname, client-setname,config-get,config-set,config-resetstat,dbsize,debug-object,debug-segfault,decr,decrby,del,discard, dump,echo,eval,evalsha,exec,exists,expire,expireat,flushall,flushdb,get,getbit,getrange,getset,hdel,hexists,hget, hgetall,hincrby,hincrbyfloat,hkeys,hlen,hmget,hmset,hset,hsetnx,hvals,incr,incrby,incrbyfloat,info,keys,lastsave, lindex,linsert,llen,lpop,lpush,lpushx,lrange,lrem,lset,ltrim,mget,migrate,monitor,move,mset,msetnx,multi,object, persist,pexpire,pexpireat,pfadd,pfcount,pfmerge,ping,psetex,psubscribe,pttl,publish,punsubscribe,quit,randomkey,rename,renamenx,restore, rpop,rpoplpush,rpush,rpushx,sadd,save,scard,script-exists,script-flush,script-kill,script-load,sdiff,sdiffstore, select,set,setbit,setex,setnx,setrange,shutdown,sinter,sinterstore,sismember,slaveof,slowlog,smembers,smove,sort, spop,srandmember,srem,strlen,subscribe,sunion,sunionstore,sync,time,ttl,type,unsubscribe,unwatch,watch,zadd,zcard, zcount,zincrby,zinterstore,zrange,zrangebyscore,zrank,zrem,zremrangebyrank,zremrangebyscore,zrevrange, zrevrangebyscore,zrevrank,zscore,zunionstore,pubsub,config-rewrite,client-pause,hscan,scan,sscan,zscan</span>
<span>   6</span> 
<span>   7</span>     <span>private</span> <span>static</span> <span>$redis</span><span>;
</span><span>   8</span> 
<span>   9</span>     <span>public</span> <span>function</span> __construct(<span>$arConfig</span> = <span>array</span>('host'=>'127.0.0.1', 'port'=> 6379<span>))
</span><span>  10</span> <span>    {
</span><span>  11</span>         <span>$this</span>->host    =    <span>$arConfig</span>['host'<span>];
</span><span>  12</span>         <span>$this</span>->port    =    <span>$arConfig</span>['port'<span>];
</span><span>  13</span>         self::<span>$redis</span>    =    <span>new</span><span>    Redis();
</span><span>  14</span>         self::<span>$redis</span>->connect(<span>$this</span>->host, <span>$this</span>-><span>port);
</span><span>  15</span>         <span>return</span> self::<span>$redis</span><span>;
</span><span>  16</span> <span>    }
</span><span>  17</span> 
<span>  18</span>     <span>public</span> <span>function</span> __call(<span>$sMethod</span>, <span>$arParam</span><span>)
</span><span>  19</span> <span>    {
</span><span>  20</span>         <span>return</span> <span>call_user_func_array</span>(<span>array</span>(self::<span>$redis</span>, <span>$sMethod</span>), <span>$arParam</span><span>);
</span><span>  21</span> <span>    }
</span><span>  22</span> 
<span>  23</span>     <span>/*</span><span>****************** key ********************</span><span>*/</span>
<span>  24</span> 
<span>  25</span>     <span>/*</span><span>*
</span><span>  26</span> <span>     * 查找所有符合給定模式 pattern 的 key 。
</span><span>  27</span> <span>     * KEYS * 匹配數(shù)據(jù)庫中所有 key 。
</span><span>  28</span> <span>     * KEYS h?llo 匹配 hello ， hallo 和 hxllo 等。
</span><span>  29</span> <span>     * KEYS h*llo 匹配 hllo 和 heeeeello 等。
</span><span>  30</span> <span>     * KEYS h[ae]llo 匹配 hello 和 hallo ，但不匹配 hillo 。
</span><span>  31</span> <span>     * 特殊符號用 \ 隔開。
</span><span>  32</span> <span>     * @author    zhaoyingnan    2015-10-16 17:33
</span><span>  33</span> <span>     * @param    string        $sPattern    匹配模式
</span><span>  34</span> <span>     * @return    array
</span><span>  35</span> <span>     *</span><span>*/</span>
<span>  36</span>     <span>public</span> <span>function</span> keys(<span>$sPattern</span> = '*'<span>)
</span><span>  37</span> <span>    {
</span><span>  38</span>         <span>//</span><span>echo $sPattern;</span>
<span>  39</span>         <span>return</span> self::<span>$redis</span>->keys(<span>$sPattern</span><span>);
</span><span>  40</span> <span>    }
</span><span>  41</span> 
<span>  42</span>     <span>/*</span><span>*
</span><span>  43</span> <span>     * 返回key是否存在。
</span><span>  44</span> <span>     * @author    zhaoyingnan    2015-10-16 17:40
</span><span>  45</span> <span>     * @param    string        $sKey        要檢測的 key
</span><span>  46</span> <span>     * @return    bool
</span><span>  47</span> <span>     *</span><span>*/</span>
<span>  48</span>     <span>public</span> <span>function</span> exists(<span>$sKey</span><span>)
</span><span>  49</span> <span>    {
</span><span>  50</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span>  51</span>         <span>return</span> self::<span>$redis</span>->exists(<span>$sKey</span><span>);
</span><span>  52</span> <span>    }
</span><span>  53</span> 
<span>  54</span>     <span>/*</span><span>*
</span><span>  55</span> <span>     * 設置key的過期時間。如果key已過期，將會被自動刪除。設置了過期時間的key被稱之為volatile。
</span><span>  56</span> <span>     * 在key過期之前可以重新更新他的過期時間，也可以使用PERSIST命令刪除key的過期時間。
</span><span>  57</span> <span>     * @author    zhaoyingnan    2015-10-16 17:46
</span><span>  58</span> <span>     * @param    string        $sKey        key
</span><span>  59</span> <span>     * @param    int            $iSecond    生存周期(秒)
</span><span>  60</span> <span>     * @return    bool
</span><span>  61</span> <span>     *</span><span>*/</span>
<span>  62</span>     <span>public</span> <span>function</span> expire(<span>$sKey</span>, <span>$iSecond</span> = 60<span>)
</span><span>  63</span> <span>    {
</span><span>  64</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span>  65</span>         <span>return</span> self::<span>$redis</span>->expire(<span>$sKey</span>, <span>$iSecond</span><span>);
</span><span>  66</span> <span>    }
</span><span>  67</span> 
<span>  68</span>     <span>/*</span><span>*
</span><span>  69</span> <span>     * 這個命令和 EXPIRE 命令的作用類似，但是它以毫秒為單位設置 key 的生存時間，而不像 EXPIRE 命令那樣，以秒為單位。
</span><span>  70</span> <span>     * @author    zhaoyingnan    2015-10-19 16:00
</span><span>  71</span> <span>     * @param    string        $sKey        key
</span><span>  72</span> <span>     * @param    int            $iSecond    生存周期(秒)
</span><span>  73</span> <span>     * @return    bool
</span><span>  74</span> <span>     *</span><span>*/</span>
<span>  75</span>     <span>public</span> <span>function</span> pexpire(<span>$sKey</span>, <span>$iMilliseconds</span> = 60000<span>)
</span><span>  76</span> <span>    {
</span><span>  77</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span>  78</span>         <span>return</span> self::<span>$redis</span>->pexpire(<span>$sKey</span>, <span>$iMilliseconds</span><span>);
</span><span>  79</span> <span>    }
</span><span>  80</span> 
<span>  81</span>     <span>/*</span><span>*
</span><span>  82</span> <span>     * EXPIREAT 的作用和 EXPIRE類似，都用于為 key 設置生存時間。不同在于 EXPIREAT 命令接受的時間參數(shù)是 UNIX 時間戳 Unix timestamp 。
</span><span>  83</span> <span>     * @author    zhaoyingnan    2015-10-16 18:03
</span><span>  84</span> <span>     * @param    string        $sKey        key
</span><span>  85</span> <span>     * @param    int            $iUnixtimestamp    UNIX 時間戳(秒)
</span><span>  86</span> <span>     * @return    bool
</span><span>  87</span> <span>     *</span><span>*/</span>
<span>  88</span>     <span>public</span> <span>function</span> expireat(<span>$sKey</span>, <span>$iUnixtimestamp</span><span>)
</span><span>  89</span> <span>    {
</span><span>  90</span>         <span>if</span>(!<span>$sKey</span> || !<span>$iUnixtimestamp</span>)<span>return</span> <span>FALSE</span><span>;
</span><span>  91</span>         <span>return</span> self::<span>$redis</span>->expireat(<span>$sKey</span>, <span>$iUnixtimestamp</span><span>);
</span><span>  92</span> <span>    }
</span><span>  93</span> 
<span>  94</span>     <span>/*</span><span>*
</span><span>  95</span> <span>     * PEXPIREAT 這個命令和 EXPIREAT命令類似，但它以毫秒為單位設置 key 的過期 unix 時間戳，而不是像 EXPIREAT 那樣，以秒為單位。
</span><span>  96</span> <span>     * EXPIREAT 的作用和 EXPIRE類似，都用于為 key 設置生存時間。不同在于 EXPIREAT 命令接受的時間參數(shù)是 UNIX 時間戳 Unix timestamp 。
</span><span>  97</span> <span>     * @author    zhaoyingnan    2015-10-16 18:03
</span><span>  98</span> <span>     * @param    string        $sKey        key
</span><span>  99</span> <span>     * @param    int            $iMilliseconds    UNIX 時間戳(毫秒)
</span><span> 100</span> <span>     * @return    bool
</span><span> 101</span> <span>     *</span><span>*/</span>
<span> 102</span>     <span>public</span> <span>function</span> pexpireat(<span>$sKey</span>, <span>$iMilliseconds</span><span>)
</span><span> 103</span> <span>    {
</span><span> 104</span>         <span>if</span>(!<span>$sKey</span> || !<span>$iMilliseconds</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 105</span>         <span>return</span> self::<span>$redis</span>->pexpireat(<span>$sKey</span>, <span>$iMilliseconds</span><span>);
</span><span> 106</span> <span>    }
</span><span> 107</span> 
<span> 108</span>     <span>/*</span><span>*
</span><span> 109</span> <span>     * 以秒為單位，返回給定 key 的剩余生存時間(TTL, time to live)。
</span><span> 110</span> <span>     * @author    zhaoyingnan    2015-10-16 17:52
</span><span> 111</span> <span>     * @param    string        $sKey        key
</span><span> 112</span> <span>     * @return    int            當 key 不存在時，返回 -2 。當 key 存在但沒有設置剩余生存時間時，返回 -1 。否則，以秒為單位，返回 key 的剩余生存時間。
</span><span> 113</span> <span>     *</span><span>*/</span>
<span> 114</span>     <span>public</span> <span>function</span> ttl(<span>$sKey</span><span>)
</span><span> 115</span> <span>    {
</span><span> 116</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> -2<span>;
</span><span> 117</span>         <span>return</span> self::<span>$redis</span>->ttl(<span>$sKey</span><span>);
</span><span> 118</span> <span>    }
</span><span> 119</span> 
<span> 120</span>     <span>/*</span><span>*
</span><span> 121</span> <span>     * 這個命令類似于 TTL 命令，但它以毫秒為單位返回 key 的剩余生存時間，而不是像 TTL 命令那樣，以秒為單位。
</span><span> 122</span> <span>     * @author    zhaoyingnan    2015-10-19 16:06
</span><span> 123</span> <span>     * @param    string        $sKey        key
</span><span> 124</span> <span>     * @return    int            當 key 不存在時，返回 -2 。當 key 存在但沒有設置剩余生存時間時，返回 -1 。否則，以秒為單位，返回 key 的剩余生存時間。
</span><span> 125</span> <span>     *</span><span>*/</span>
<span> 126</span>     <span>public</span> <span>function</span> pttl(<span>$sKey</span><span>)
</span><span> 127</span> <span>    {
</span><span> 128</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> -2<span>;
</span><span> 129</span>         <span>return</span> self::<span>$redis</span>->pttl(<span>$sKey</span><span>);
</span><span> 130</span> <span>    }
</span><span> 131</span> 
<span> 132</span>     <span>/*</span><span>*
</span><span> 133</span> <span>     * 將 key 原子性地從當前實例傳送到目標實例的指定數(shù)據(jù)庫上，一旦傳送成功， key 保證會出現(xiàn)在目標實例上，而當前實例上的 key 會被刪除。
</span><span> 134</span> <span>     * 這個命令是一個原子操作，它在執(zhí)行的時候會阻塞進行遷移的兩個實例，直到以下任意結果發(fā)生：遷移成功，遷移失敗，等到超時。
</span><span> 135</span> <span>     * @author    zhaoyingnan    2015-10-16 18:24
</span><span> 136</span> <span>     * @param    string        $sHost        目標 ip
</span><span> 137</span> <span>     * @param    int            $iPort        端口
</span><span> 138</span> <span>     * @param    string        $sKey        要操作的 key
</span><span> 139</span> <span>     * @param    int            $iDb        目標實例的數(shù)據(jù)庫的編號
</span><span> 140</span> <span>     * @param    int            $iTimeout    timeout 參數(shù)以毫秒為格式，指定當前實例和目標實例進行溝通的最大間隔時間。這說明操作并不一定要在 timeout 毫秒內完成，只是說數(shù)據(jù)傳送的時間不能超過這個 timeout 數(shù)。
</span><span> 141</span> <span>     * @return    bool        注:當目標實例的指定的數(shù)據(jù)庫中存在指定的 key 返回 FALS,當前實例中的 key 并沒有被刪除,也沒有移動到目標實例上,目標實例上的 key 還是原來的
</span><span> 142</span> <span>     *</span><span>*/</span>
<span> 143</span>     <span>public</span> <span>function</span> migrate(<span>$sHost</span>, <span>$iPort</span>, <span>$sKey</span>, <span>$iDb</span>, <span>$iTimeout</span><span>)
</span><span> 144</span> <span>    {
</span><span> 145</span>         <span>if</span>(!<span>$sHost</span> || !<span>$iPort</span> || !<span>$sKey</span> || !<span>$iDb</span> || !<span>$iTimeout</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 146</span>         <span>return</span> self::<span>$redis</span>->migrate(<span>$sHost</span>, <span>$iPort</span>, <span>$sKey</span>, <span>$iDb</span>, <span>$iTimeout</span><span>);
</span><span> 147</span> <span>    }
</span><span> 148</span> 
<span> 149</span>     <span>/*</span><span>*
</span><span> 150</span> <span>     * 將當前數(shù)據(jù)庫的 key 移動到給定的數(shù)據(jù)庫 db 當中。
</span><span> 151</span> <span>     * 如果當前數(shù)據(jù)庫(源數(shù)據(jù)庫)和給定數(shù)據(jù)庫(目標數(shù)據(jù)庫)有相同名字的給定 key ，或者 key 不存在于當前數(shù)據(jù)庫，那么 MOVE 沒有任何效果。
</span><span> 152</span> <span>     * @author    zhaoyingnan    2015-10-19 15:42
</span><span> 153</span> <span>     * @param    string        $sKey    key
</span><span> 154</span> <span>     * @param    int            $iDb    移動到給定的數(shù)據(jù)庫 id
</span><span> 155</span> <span>     * @return    bool
</span><span> 156</span> <span>     *</span><span>*/</span>
<span> 157</span>     <span>public</span> <span>function</span> move(<span>$sKey</span>, <span>$iDb</span><span>)
</span><span> 158</span> <span>    {
</span><span> 159</span>         <span>if</span>(!<span>$sKey</span> || !<span>$iDb</span>)<span>return</span> <span>FALSE</span><span>;    
</span><span> 160</span>         <span>return</span> self::<span>$redis</span>->move(<span>$sKey</span>, <span>$iDb</span><span>);
</span><span> 161</span> <span>    }
</span><span> 162</span> 
<span> 163</span>     <span>/*</span><span>*
</span><span> 164</span> <span>     * 移除給定key的生存時間，將這個 key 從『易失的』(帶生存時間 key )轉換成『持久的』(一個不帶生存時間、永不過期的 key )。
</span><span> 165</span> <span>     * @author    zhaoyingnan    2015-10-19 15:55
</span><span> 166</span> <span>     * @param    string        $sKey    key
</span><span> 167</span> <span>     * @return    bool        當生存時間移除成功時，返回 1  如果 key 不存在或 key 沒有設置生存時間，返回 0
</span><span> 168</span> <span>     *</span><span>*/</span>
<span> 169</span>     <span>public</span> <span>function</span> persist(<span>$sKey</span><span>)
</span><span> 170</span> <span>    {
</span><span> 171</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;    
</span><span> 172</span>         <span>return</span> self::<span>$redis</span>->persist(<span>$sKey</span><span>);
</span><span> 173</span> <span>    }
</span><span> 174</span> 
<span> 175</span>     <span>/*</span><span>*
</span><span> 176</span> <span>     * 從當前數(shù)據(jù)庫返回一個隨機的key。
</span><span> 177</span> <span>     * @author    zhaoyingnan    2015-10-19 16:08
</span><span> 178</span> <span>     * @return    string        如果數(shù)據(jù)庫沒有任何key，返回nil，否則返回一個隨機的key。    
</span><span> 179</span> <span>     *</span><span>*/</span>
<span> 180</span>     <span>public</span> <span>function</span><span> randomkey()
</span><span> 181</span> <span>    {
</span><span> 182</span>         <span>return</span> self::<span>$redis</span>-><span>randomkey();
</span><span> 183</span> <span>    }
</span><span> 184</span> 
<span> 185</span>     <span>/*</span><span>*
</span><span> 186</span> <span>     * 將key重命名為newkey，如果key與newkey相同，將返回一個錯誤。如果newkey已經存在，則值將被覆蓋。
</span><span> 187</span> <span>     * @author    zhaoyingnan    2015-10-19 16:12
</span><span> 188</span> <span>     * @param    string        $sKey    key
</span><span> 189</span> <span>     * @param    string        $sNewKey    重命名后的 key 值    
</span><span> 190</span> <span>     * @return    bool
</span><span> 191</span> <span>     *</span><span>*/</span>
<span> 192</span>     <span>public</span> <span>function</span> <span>rename</span>(<span>$sKey</span>, <span>$sNewKey</span><span>)
</span><span> 193</span> <span>    {
</span><span> 194</span>         <span>if</span>(!<span>$sKey</span> || !<span>$sNewKey</span>)<span>return</span> <span>FALSE</span><span>;    
</span><span> 195</span>         <span>return</span> self::<span>$redis</span>-><span>rename</span>(<span>$sKey</span>, <span>$sNewKey</span><span>);
</span><span> 196</span> <span>    }
</span><span> 197</span> 
<span> 198</span>     <span>/*</span><span>*
</span><span> 199</span> <span>     * 當且僅當 newkey 不存在時，將 key 改名為 newkey 。當 key 不存在時，返回一個錯誤。
</span><span> 200</span> <span>     * @author    zhaoyingnan    2015-10-19 16:16
</span><span> 201</span> <span>     * @param    string        $sKey    key
</span><span> 202</span> <span>     * @param    string        $sNewKey    重命名后的 key 值    
</span><span> 203</span> <span>     * @return    bool
</span><span> 204</span> <span>     *</span><span>*/</span>
<span> 205</span>     <span>public</span> <span>function</span> renamenx(<span>$sKey</span>, <span>$sNewKey</span><span>)
</span><span> 206</span> <span>    {
</span><span> 207</span>         <span>if</span>(!<span>$sKey</span> || !<span>$sNewKey</span>)<span>return</span> <span>FALSE</span><span>;    
</span><span> 208</span>         <span>return</span> self::<span>$redis</span>->renamenx(<span>$sKey</span>, <span>$sNewKey</span><span>);
</span><span> 209</span> <span>    }
</span><span> 210</span> 
<span> 211</span>     <span>/*</span><span>*
</span><span> 212</span> <span>     * 返回 key 所儲存的值的類型。
</span><span> 213</span> <span>     * @author    zhaoyingnan    2015-10-19 16:25
</span><span> 214</span> <span>     * @param    string        $sKey    key
</span><span> 215</span> <span>     * @return    string        none (key不存在) string (字符串) list (列表) set (集合) zset (有序集) hash (哈希表)
</span><span> 216</span> <span>     *</span><span>*/</span>
<span> 217</span>     <span>public</span> <span>function</span> type(<span>$sKey</span><span>)
</span><span> 218</span> <span>    {
</span><span> 219</span>         <span>return</span> self::<span>$redis</span>->type(<span>$sKey</span><span>);
</span><span> 220</span> <span>    }
</span><span> 221</span> 
<span> 222</span>     <span>/*</span><span>****************** string ********************</span><span>*/</span>
<span> 223</span> 
<span> 224</span>     <span>/*</span><span>*
</span><span> 225</span> <span>     * 將key和value對應。如果key已經存在了，它會被覆蓋，而不管它是什么類型。
</span><span> 226</span> <span>     * @author    zhaoyingnan    2015-10-19 16:35
</span><span> 227</span> <span>     * @param    string        $sKey        key
</span><span> 228</span> <span>     * @param    string        $sValue        key 對應的值
</span><span> 229</span> <span>     * @return    bool
</span><span> 230</span> <span>     *</span><span>*/</span>
<span> 231</span>     <span>public</span> <span>function</span> set(<span>$sKey</span>, <span>$sValue</span><span>)
</span><span> 232</span> <span>    {
</span><span> 233</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 234</span>         <span>return</span> self::<span>$redis</span>->set(<span>$sKey</span>, <span>$sValue</span><span>);
</span><span> 235</span> <span>    }
</span><span> 236</span> 
<span> 237</span>     <span>/*</span><span>*
</span><span> 238</span> <span>     * 設置key對應字符串value，并且設置key在給定的 seconds 時間之后超時過期。
</span><span> 239</span> <span>     * @author    zhaoyingnan    2015-11-03 11:25
</span><span> 240</span> <span>     * @param    string        $sKey        被操作的 key
</span><span> 241</span> <span>     * @param    int            $iSecond    生命周期（秒）
</span><span> 242</span> <span>     * @param    string        $sValue        key 對應的 value
</span><span> 243</span> <span>     * @return    bool
</span><span> 244</span> <span>     *</span><span>*/</span>
<span> 245</span>     <span>public</span> <span>function</span> setex(<span>$sKey</span>, <span>$iSecond</span>, <span>$sValue</span><span>)
</span><span> 246</span> <span>    {
</span><span> 247</span>         <span>if</span>(!<span>$sKey</span> || !<span>$sValue</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 248</span>         <span>$iSecond</span> = <span>$iSecond</span> ? <span>abs</span>((<span>intval</span>(<span>$iSecond</span>))) : 30<span>;
</span><span> 249</span>         <span>return</span> self::<span>$redis</span>->setex(<span>$sKey</span>, <span>$iSecond</span>, <span>$sValue</span><span>);
</span><span> 250</span> <span>    }
</span><span> 251</span> 
<span> 252</span>     <span>/*</span><span>*
</span><span> 253</span> <span>     * 設置key對應字符串value，并且設置key在給定的 milliseconds 時間之后超時過期。
</span><span> 254</span> <span>     * @author    zhaoyingnan    2015-11-03 11:25
</span><span> 255</span> <span>     * @param    string        $sKey        被操作的 key
</span><span> 256</span> <span>     * @param    int            $iMillSecond    生命周期（毫秒）
</span><span> 257</span> <span>     * @param    string        $sValue        key 對應的 value
</span><span> 258</span> <span>     * @return    bool
</span><span> 259</span> <span>     *</span><span>*/</span>
<span> 260</span>     <span>public</span> <span>function</span> psetex(<span>$sKey</span>, <span>$iMilliseconds</span> , <span>$sValue</span><span>)
</span><span> 261</span> <span>    {
</span><span> 262</span>         <span>if</span>(!<span>$sKey</span> || !<span>$sValue</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 263</span>         <span>$iMilliseconds</span> = <span>$iMilliseconds</span> ? <span>abs</span>((<span>intval</span>(<span>$iMilliseconds</span>))) : 30<span>;
</span><span> 264</span>         <span>return</span> self::<span>$redis</span>->psetex(<span>$sKey</span>, <span>$iMilliseconds</span>, <span>$sValue</span><span>);
</span><span> 265</span> <span>    }
</span><span> 266</span> 
<span> 267</span>     <span>/*</span><span>*
</span><span> 268</span> <span>     * 自動將key對應到value并且返回原來key對應的value。如果key存在但是對應的value不是字符串，就返回錯誤。
</span><span> 269</span> <span>     * @author    zhaoyingnan    2015-10-19 18:10
</span><span> 270</span> <span>     * @param    string        $sKey        key
</span><span> 271</span> <span>     * @param    string        $sValue        設置的新的值
</span><span> 272</span> <span>     * @return    string
</span><span> 273</span> <span>     *</span><span>*/</span>
<span> 274</span>     <span>public</span> <span>function</span> getset(<span>$sKey</span>, <span>$sValue</span><span>)
</span><span> 275</span> <span>    {
</span><span> 276</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> ''<span>;
</span><span> 277</span>         <span>return</span> self::<span>$redis</span>->getset(<span>$sKey</span>, <span>$sValue</span><span>);
</span><span> 278</span> <span>    }
</span><span> 279</span> 
<span> 280</span>     <span>/*</span><span>*
</span><span> 281</span> <span>     * 對應給定的keys到他們相應的values上。MSET會用新的value替換已經存在的value，就像普通的SET命令一樣。
</span><span> 282</span> <span>     * 如果你不想覆蓋已經存在的values，請參看命令MSETNX。
</span><span> 283</span> <span>     * MSET是原子的，所以所有給定的keys是一次性set的?？蛻舳瞬豢赡芸吹竭@種一部分keys被更新而另外的沒有改變的情況。
</span><span> 284</span> <span>     * @author    zhaoyingnan    2015-11-03 11:04
</span><span> 285</span> <span>     * @param    array        $arArray    被設置的關聯(lián)數(shù)組
</span><span> 286</span> <span>     * @return    bool
</span><span> 287</span> <span>     *</span><span>*/</span>
<span> 288</span>     <span>public</span> <span>function</span> mset(<span>$arArray</span> = <span>array</span><span>())
</span><span> 289</span> <span>    {
</span><span> 290</span>         <span>if</span>(!<span>$arArray</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 291</span>         <span>return</span> self::<span>$redis</span>->mset(<span>$arArray</span><span>);
</span><span> 292</span> <span>    }
</span><span> 293</span> 
<span> 294</span>     <span>/*</span><span>*
</span><span> 295</span> <span>     * 對應給定的keys到他們相應的values上。
</span><span> 296</span> <span>     * 只要有一個key已經存在，MSETNX一個操作都不會執(zhí)行。 
</span><span> 297</span> <span>     * 由于這種特性，MSETNX可以實現(xiàn)要么所有的操作都成功，要么一個都不執(zhí)行，這樣可以用來設置不同的key，來表示一個唯一的對象的不同字段。
</span><span> 298</span> <span>     * MSETNX是原子的，所以所有給定的keys是一次性set的。客戶端不可能看到這種一部分keys被更新而另外的沒有改變的情況。
</span><span> 299</span> <span>     * @author    zhaoyingnan    2015-11-03 11:11
</span><span> 300</span> <span>     * @param    array        $arArray    被設置的關聯(lián)數(shù)組
</span><span> 301</span> <span>     * @return    bool        TRUE 所有的key被set, FALSE 沒有key被set(至少其中有一個key是存在的)
</span><span> 302</span> <span>     *</span><span>*/</span>
<span> 303</span>     <span>public</span> <span>function</span>    msetnx(<span>$arArray</span> = <span>array</span><span>())
</span><span> 304</span> <span>    {
</span><span> 305</span>         <span>if</span>(!<span>$arArray</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 306</span>         <span>return</span> self::<span>$redis</span>->msetnx(<span>$arArray</span><span>);
</span><span> 307</span> <span>    }
</span><span> 308</span> 
<span> 309</span>     <span>/*</span><span>*
</span><span> 310</span> <span>     * 如果key不存在，就設置key對應字符串value。
</span><span> 311</span> <span>     * 在這種情況下，該命令和SET一樣。當key已經存在時，就不做任何操作。
</span><span> 312</span> <span>     * SETNX是"SET if Not eXists"。
</span><span> 313</span> <span>     * @author    zhaoyingnan    2015-11-03 11:49
</span><span> 314</span> <span>     * @param    string        $sKey        key
</span><span> 315</span> <span>     * @param    string        $sValue        值
</span><span> 316</span> <span>     * @return    bool        TRUE key被set, FALSE key沒有被set
</span><span> 317</span> <span>     *</span><span>*/</span>
<span> 318</span>     <span>public</span> <span>function</span> setnx(<span>$sKey</span>, <span>$sValue</span><span>)
</span><span> 319</span> <span>    {
</span><span> 320</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 321</span>         <span>return</span> self::<span>$redis</span>->setnx(<span>$sKey</span>, <span>$sValue</span><span>);
</span><span> 322</span> <span>    }
</span><span> 323</span> 
<span> 324</span>     <span>/*</span><span>*
</span><span> 325</span> <span>     * 返回key的value。如果key不存在，返回特殊值nil。如果key的value不是string，就返回錯誤，因為GET只處理string類型的values。
</span><span> 326</span> <span>     * @author    zhaoyingnan    2015-10-19 17:57
</span><span> 327</span> <span>     * @param    string        $sKey        key
</span><span> 328</span> <span>     * @return    string
</span><span> 329</span> <span>     *</span><span>*/</span>
<span> 330</span>     <span>public</span> <span>function</span> get(<span>$sKey</span><span>)
</span><span> 331</span> <span>    {
</span><span> 332</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> ''<span>;
</span><span> 333</span>         <span>return</span> self::<span>$redis</span>->get(<span>$sKey</span><span>);
</span><span> 334</span> <span>    }
</span><span> 335</span> 
<span> 336</span>     <span>/*</span><span>*
</span><span> 337</span> <span>     * 返回所有指定的key的value。對于每個不對應string或者不存在的key，都返回特殊值nil。正因為此，這個操作從來不會失敗。
</span><span> 338</span> <span>     * @author    zhaoyingnan    2015-11-03 10:55
</span><span> 339</span> <span>     * @param    array        $arKey        要獲取的 key 的數(shù)組
</span><span> 340</span> <span>     * @return    array        redis返回的是以數(shù)字為索引的數(shù)組，這里返回的是一個關聯(lián)數(shù)組
</span><span> 341</span> <span>     *</span><span>*/</span>
<span> 342</span>     <span>public</span> <span>function</span> mget(<span>$arKey</span> = <span>array</span><span>())
</span><span> 343</span> <span>    {
</span><span> 344</span>         <span>if</span>(!<span>$arKey</span>)<span>return</span> <span>array</span><span>();
</span><span> 345</span>         <span>$arResult</span> = self::<span>$redis</span>->mget(<span>$arKey</span><span>);
</span><span> 346</span>         <span>return</span> <span>array_combine</span>(<span>$arKey</span>, <span>$arResult</span><span>);
</span><span> 347</span> <span>    }
</span><span> 348</span> 
<span> 349</span>     <span>/*</span><span>*
</span><span> 350</span> <span>     * 如果 key 已經存在，并且值為字符串，那么這個命令會把 value 追加到原來值（value）的結尾。
</span><span> 351</span> <span>     * 如果 key 不存在，那么它將首先創(chuàng)建一個空字符串的key，再執(zhí)行追加操作，這種情況 APPEND 將類似于 SET 操作。
</span><span> 352</span> <span>     * @author    zhaoyingnan    2015-10-19 16:34
</span><span> 353</span> <span>     * @param    string        $sKey        key
</span><span> 354</span> <span>     * @param    string        $sValue        追加的值
</span><span> 355</span> <span>     * @return    int
</span><span> 356</span> <span>     *</span><span>*/</span>
<span> 357</span>     <span>public</span> <span>function</span> append(<span>$sKey</span>, <span>$sValue</span><span>)
</span><span> 358</span> <span>    {
</span><span> 359</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 360</span>         <span>return</span> self::<span>$redis</span>->append(<span>$sKey</span>, <span>$sValue</span><span>);
</span><span> 361</span> <span>    }
</span><span> 362</span> 
<span> 363</span>     <span>/*</span><span>*
</span><span> 364</span> <span>     * 對key對應的數(shù)字做加1操作。如果key不存在，那么在操作之前，這個key對應的值會被置為0。
</span><span> 365</span> <span>     * 如果key有一個錯誤類型的value或者是一個不能表示成數(shù)字的字符串，就返回錯誤。
</span><span> 366</span> <span>     * 這個操作最大支持在64位有符號的整型數(shù)字。
</span><span> 367</span> <span>     * @author    zhaoyingnan    2015-10-19 17:44
</span><span> 368</span> <span>     * @param    string        $sKey        key
</span><span> 369</span> <span>     * @return    string
</span><span> 370</span> <span>     *</span><span>*/</span>
<span> 371</span>     <span>public</span> <span>function</span> incr(<span>$sKey</span><span>)
</span><span> 372</span> <span>    {
</span><span> 373</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> ''<span>;
</span><span> 374</span>         <span>return</span> self::<span>$redis</span>->incr(<span>$sKey</span><span>);
</span><span> 375</span> <span>    }
</span><span> 376</span> 
<span> 377</span>     <span>/*</span><span>*
</span><span> 378</span> <span>     * 將key對應的數(shù)字加decrement。如果key不存在，操作之前，key就會被置為0。
</span><span> 379</span> <span>     * 如果key的value類型錯誤或者是個不能表示成數(shù)字的字符串，就返回錯誤。這個操作最多支持64位有符號的正型數(shù)字。
</span><span> 380</span> <span>     * @author    zhaoyingnan    2015-10-19 17:44
</span><span> 381</span> <span>     * @param    string        $sKey        key
</span><span> 382</span> <span>     * @param    int            $iIncrement    步進值
</span><span> 383</span> <span>     * @return    string
</span><span> 384</span> <span>     *</span><span>*/</span>
<span> 385</span>     <span>public</span> <span>function</span> incrby(<span>$sKey</span>, <span>$iIncrement</span><span>)
</span><span> 386</span> <span>    {
</span><span> 387</span>         <span>if</span>(!<span>$sKey</span> || !<span>$iIncrement</span>)<span>return</span> ''<span>;
</span><span> 388</span>         <span>return</span> self::<span>$redis</span>->incrby(<span>$sKey</span>, <span>$iIncrement</span><span>);
</span><span> 389</span> <span>    }
</span><span> 390</span> 
<span> 391</span>     <span>/*</span><span>*
</span><span> 392</span> <span>     * 將key對應的數(shù)字加decrement。如果key不存在，操作之前，key就會被置為0。
</span><span> 393</span> <span>     * 如果key的value類型錯誤或者是個不能表示成數(shù)字的字符串，就返回錯誤。這個操作最多支持64位有符號的正型數(shù)字。
</span><span> 394</span> <span>     * @author    zhaoyingnan    2015-10-19 17:44
</span><span> 395</span> <span>     * @param    string        $sKey        key
</span><span> 396</span> <span>     * @param    fload        $floatIncrement    步進值
</span><span> 397</span> <span>     * @return    string
</span><span> 398</span> <span>     *</span><span>*/</span>
<span> 399</span>     <span>public</span> <span>function</span> incrbyfloat(<span>$sKey</span>, <span>$floatIncrement</span><span>)
</span><span> 400</span> <span>    {
</span><span> 401</span>         <span>if</span>(!<span>$sKey</span> || !<span>$floatIncrement</span>)<span>return</span> ''<span>;
</span><span> 402</span>         <span>return</span> self::<span>$redis</span>->incrbyfloat(<span>$sKey</span>, <span>$floatIncrement</span><span>);
</span><span> 403</span> <span>    }
</span><span> 404</span> 
<span> 405</span>     <span>/*</span><span>*
</span><span> 406</span> <span>     * 對key對應的數(shù)字做減1操作。如果key不存在，那么在操作之前，這個key對應的值會被置為0。
</span><span> 407</span> <span>     * 如果key有一個錯誤類型的value或者是一個不能表示成數(shù)字的字符串，就返回錯誤。這個操作最大支持在64位有符號的整型數(shù)字。
</span><span> 408</span> <span>     * @author    zhaoyingnan    2015-10-19 17:44
</span><span> 409</span> <span>     * @param    string        $sKey        key
</span><span> 410</span> <span>     * @return    string
</span><span> 411</span> <span>     *</span><span>*/</span>
<span> 412</span>     <span>public</span> <span>function</span> decr(<span>$sKey</span><span>)
</span><span> 413</span> <span>    {
</span><span> 414</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> ''<span>;
</span><span> 415</span>         <span>return</span> self::<span>$redis</span>->decr(<span>$sKey</span><span>);
</span><span> 416</span> <span>    }
</span><span> 417</span> 
<span> 418</span>     <span>/*</span><span>*
</span><span> 419</span> <span>     * 將key對應的數(shù)字減decrement。如果key不存在，操作之前，key就會被置為0。
</span><span> 420</span> <span>     * 如果key的value類型錯誤或者是個不能表示成數(shù)字的字符串，就返回錯誤。這個操作最多支持64位有符號的正型數(shù)字。
</span><span> 421</span> <span>     * @author    zhaoyingnan    2015-10-19 17:44
</span><span> 422</span> <span>     * @param    string        $sKey        key
</span><span> 423</span> <span>     * @param    int            $iIncrement    步進值
</span><span> 424</span> <span>     * @return    string
</span><span> 425</span> <span>     *</span><span>*/</span>
<span> 426</span>     <span>public</span> <span>function</span> decrby(<span>$sKey</span>, <span>$iIncrement</span><span>)
</span><span> 427</span> <span>    {
</span><span> 428</span>         <span>if</span>(!<span>$sKey</span> || !<span>$iIncrement</span>)<span>return</span> ''<span>;
</span><span> 429</span>         <span>return</span> self::<span>$redis</span>->decrby(<span>$sKey</span>, <span>$iIncrement</span><span>);
</span><span> 430</span> <span>    }
</span><span> 431</span> 
<span> 432</span>     <span>/*</span><span>*
</span><span> 433</span> <span>     * 這個命令是被改成GETRANGE的，在小于2.0的Redis版本中叫SUBSTR。 
</span><span> 434</span> <span>     * 返回key對應的字符串value的子串，這個子串是由start和end位移決定的（兩者都在string內）。
</span><span> 435</span> <span>     * 可以用負的位移來表示從string尾部開始數(shù)的下標。所以-1就是最后一個字符，-2就是倒數(shù)第二個，以此類推。
</span><span> 436</span> <span>     * 這個函數(shù)處理超出范圍的請求時，都把結果限制在string內。
</span><span> 437</span> <span>     * @author    zhaoyingnan    2015-10-19 18:04
</span><span> 438</span> <span>     * @param    string        $sKey        key
</span><span> 439</span> <span>     * @pause    int            $iStart        開始位置
</span><span> 440</span> <span>     * @pause    int            $iEnd        結束位置
</span><span> 441</span> <span>     * @return    string
</span><span> 442</span> <span>     *</span><span>*/</span>
<span> 443</span>     <span>public</span> <span>function</span> getrange(<span>$sKey</span>, <span>$iStart</span> = 0, <span>$iEnd</span> = -1<span>)
</span><span> 444</span> <span>    {
</span><span> 445</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> ''<span>;
</span><span> 446</span>         <span>return</span> self::<span>$redis</span>->getrange(<span>$sKey</span>, <span>$iStart</span>, <span>$iEnd</span><span>);
</span><span> 447</span> <span>    }
</span><span> 448</span> 
<span> 449</span>     <span>/*</span><span>*
</span><span> 450</span> <span>     * 返回key的string類型value的長度。如果key對應的非string類型，就返回錯誤。
</span><span> 451</span> <span>     * @author    zhaoyingnan    2015-11-03 11:40
</span><span> 452</span> <span>     * @param    string        $sKey
</span><span> 453</span> <span>     * @return    
</span><span> 454</span> <span>     *</span><span>*/</span>
<span> 455</span>     <span>public</span> <span>function</span> <span>strlen</span>(<span>$sKey</span><span>)
</span><span> 456</span> <span>    {
</span><span> 457</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 458</span>         <span>return</span> self::<span>$redis</span>-><span>strlen</span>(<span>$sKey</span><span>);
</span><span> 459</span> <span>    }
</span><span> 460</span> 
<span> 461</span>     <span>/*</span><span>****************** list ********************</span><span>*/</span>
<span> 462</span> 
<span> 463</span>     <span>/*</span><span>*
</span><span> 464</span> <span>     * 將所有指定的值插入到存于 key 的列表的頭部。如果 key 不存在，那么在進行 push 操作前會創(chuàng)建一個空列表。 
</span><span> 465</span> <span>     * 如果 key 對應的值不是一個 list 的話，那么會返回一個錯誤。
</span><span> 466</span> <span>     * 可以使用一個命令把多個元素 push 進入列表，只需在命令末尾加上多個指定的參數(shù)。
</span><span> 467</span> <span>     * 元素是從最左端的到最右端的、一個接一個被插入到 list 的頭部。 所以對于這個命令例子 LPUSH mylist a b c，返回的列表是 c 為第一個元素， b 為第二個元素， a 為第三個元素。
</span><span> 468</span> <span>     * @author    zhaoyingnan    2015-11-03 11:59
</span><span> 469</span> <span>     * @param    string        $sKey
</span><span> 470</span> <span>     * @param    array        $arValue    需要 push 到 key 中的值的數(shù)組
</span><span> 471</span> <span>     * @return    int            在 push 操作后的 list 長度。
</span><span> 472</span> <span>     *</span><span>*/</span>
<span> 473</span>     <span>public</span> <span>function</span> lpush(<span>$sKey</span>, <span>$arValue</span> = <span>array</span><span>())
</span><span> 474</span> <span>    {
</span><span> 475</span>         <span>if</span>(!<span>$sKey</span> || !<span>$arValue</span>)<span>return</span> 0<span>;
</span><span> 476</span>         <span>foreach</span>(<span>$arValue</span> <span>as</span> <span>$val</span><span>)
</span><span> 477</span>             self::<span>$redis</span>->lpush(<span>$sKey</span>, <span>$val</span><span>);
</span><span> 478</span>         <span>return</span> self::llen(<span>$sKey</span><span>);
</span><span> 479</span> <span>    }
</span><span> 480</span> 
<span> 481</span>     <span>/*</span><span>*
</span><span> 482</span> <span>     * 只有當 key 已經存在并且存著一個 list 的時候，在這個 key 下面的 list 的頭部插入 value。 
</span><span> 483</span> <span>     * 與 LPUSH 相反，當 key 不存在的時候不會進行任何操作。
</span><span> 484</span> <span>     * @author    zhaoyingnan    2015-11-03 13:21
</span><span> 485</span> <span>     * @param    string        $sKey
</span><span> 486</span> <span>     * @param    array        $arValue    需要 push 到 key 中的值的數(shù)組
</span><span> 487</span> <span>     * @return    int
</span><span> 488</span> <span>     *</span><span>*/</span>
<span> 489</span>     <span>public</span> <span>function</span> lpushx(<span>$sKey</span>, <span>$arValue</span> = <span>array</span><span>())
</span><span> 490</span> <span>    {
</span><span> 491</span>         <span>if</span>(!<span>$sKey</span> || !<span>$arValue</span>)<span>return</span> 0<span>;
</span><span> 492</span>         <span>foreach</span>(<span>$arValue</span> <span>as</span> <span>$val</span><span>)
</span><span> 493</span>             self::<span>$redis</span>->lpushx(<span>$sKey</span>, <span>$val</span><span>);
</span><span> 494</span>         <span>return</span> self::llen(<span>$sKey</span><span>);
</span><span> 495</span> <span>    }
</span><span> 496</span> 
<span> 497</span>     <span>/*</span><span>*
</span><span> 498</span> <span>     * 向存于 key 的列表的尾部插入所有指定的值。如果 key 不存在，那么會創(chuàng)建一個空的列表然后再進行 push 操作。 
</span><span> 499</span> <span>     * 當 key 保存的不是一個列表，那么會返回一個錯誤。
</span><span> 500</span> <span>     * 可以使用一個命令把多個元素打入隊列，只需要在命令后面指定多個參數(shù)。
</span><span> 501</span> <span>     * 元素是從左到右一個接一個從列表尾部插入。 比如命令 RPUSH mylist a b c 會返回一個列表，其第一個元素是 a ，第二個元素是 b ，第三個元素是 c。
</span><span> 502</span> <span>     * @author    zhaoyingnan    2015-11-03 12:15
</span><span> 503</span> <span>     * @param    string        $sKey
</span><span> 504</span> <span>     * @param    array        $arValue    需要 push 到 key 中的值的數(shù)組
</span><span> 505</span> <span>     * @return    int            在 push 操作后的 list 長度。
</span><span> 506</span> <span>     *</span><span>*/</span>
<span> 507</span>     <span>public</span> <span>function</span> rpush(<span>$sKey</span>, <span>$arValue</span> = <span>array</span><span>())
</span><span> 508</span> <span>    {
</span><span> 509</span>         <span>if</span>(!<span>$sKey</span> || !<span>$arValue</span>)<span>return</span> 0<span>;
</span><span> 510</span>         <span>foreach</span>(<span>$arValue</span> <span>as</span> <span>$val</span><span>)
</span><span> 511</span>             self::<span>$redis</span>->lpush(<span>$sKey</span>, <span>$val</span><span>);
</span><span> 512</span>         <span>return</span> self::llen(<span>$sKey</span><span>);
</span><span> 513</span> <span>    }
</span><span> 514</span> 
<span> 515</span>     <span>/*</span><span>*
</span><span> 516</span> <span>     * 將值 value 插入到列表 key 的表尾, 當且僅當 key 存在并且是一個列表。 
</span><span> 517</span> <span>     * 和 RPUSH 命令相反, 當 key 不存在時，RPUSHX 命令什么也不做。
</span><span> 518</span> <span>     * @author    zhaoyingnan    2015-11-03 13:23
</span><span> 519</span> <span>     * @param    string        $sKey
</span><span> 520</span> <span>     * @param    array        $arValue    需要 push 到 key 中的值的數(shù)組
</span><span> 521</span> <span>     * @return    int            在 push 操作后的 list 長度。
</span><span> 522</span> <span>     *</span><span>*/</span>
<span> 523</span>     <span>public</span> <span>function</span> rpushx(<span>$sKey</span>, <span>$arValue</span> = <span>array</span><span>())
</span><span> 524</span> <span>    {
</span><span> 525</span>         <span>if</span>(!<span>$sKey</span> || !<span>$arValue</span>)<span>return</span> 0<span>;
</span><span> 526</span>         <span>foreach</span>(<span>$arValue</span> <span>as</span> <span>$val</span><span>)
</span><span> 527</span>             self::<span>$redis</span>->rpushx(<span>$sKey</span>, <span>$val</span><span>);
</span><span> 528</span>         <span>return</span> self::llen(<span>$sKey</span><span>);
</span><span> 529</span> <span>    }
</span><span> 530</span> 
<span> 531</span>     <span>/*</span><span>*
</span><span> 532</span> <span>     * 返回存儲在 key 里的list的長度。 
</span><span> 533</span> <span>     * @author    zhaoyingnan    2015-11-03 12:12
</span><span> 534</span> <span>     * @param    string        $sKey
</span><span> 535</span> <span>     * @return    bool        如果 key 不存在，那么就被看作是空list，并且返回長度為 0。 當存儲在 key 里的值不是一個list的話，會返回error。
</span><span> 536</span> <span>     *</span><span>*/</span>
<span> 537</span>     <span>public</span> <span>function</span> llen(<span>$sKey</span><span>)
</span><span> 538</span> <span>    {
</span><span> 539</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> 0<span>;
</span><span> 540</span>         <span>return</span> self::<span>$redis</span>->llen(<span>$sKey</span><span>);
</span><span> 541</span> <span>    }
</span><span> 542</span> 
<span> 543</span>     <span>/*</span><span>*
</span><span> 544</span> <span>     * 返回 key 對應的列表里的元素的索引 index 的值
</span><span> 545</span> <span>     * 下標是從0開始索引的，所以 0 是表示第一個元素， 1 表示第二個元素，并以此類推。 
</span><span> 546</span> <span>     * 負數(shù)索引用于指定從列表尾部開始索引的元素。在這種方法下，-1 表示最后一個元素，-2 表示倒數(shù)第二個元素，并以此往前推。
</span><span> 547</span> <span>     * 當 key 位置的值不是一個列表的時候，會返回一個error。
</span><span> 548</span> <span>     * @author    zhaoyingnan    2015-11-03 13:30
</span><span> 549</span> <span>     * @param    string        $sKey
</span><span> 550</span> <span>     * @param    array        $index        key 對應的列表中的 index 索引
</span><span> 551</span> <span>     * @return    mix
</span><span> 552</span> <span>     *</span><span>*/</span>
<span> 553</span>     <span>public</span> <span>function</span> lindex(<span>$sKey</span>, <span>$index</span> = 0<span>)
</span><span> 554</span> <span>    {
</span><span> 555</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 556</span>         <span>return</span> self::<span>$redis</span>->lindex(<span>$sKey</span>, <span>intval</span>(<span>$index</span><span>));
</span><span> 557</span> <span>    }
</span><span> 558</span> 
<span> 559</span>     <span>/*</span><span>*
</span><span> 560</span> <span>     * 設置 index 位置的list元素的值為 value。
</span><span> 561</span> <span>     * 下標是從0開始索引的，所以 0 是表示第一個元素， 1 表示第二個元素，并以此類推。 
</span><span> 562</span> <span>     * 當index超出范圍時會返回一個error。
</span><span> 563</span> <span>     * @author    zhaoyingnan    2015-11-03 14:27
</span><span> 564</span> <span>     * @param    string        $sKey
</span><span> 565</span> <span>     * @param    int            $index        key 對應的 list 中小標為 index
</span><span> 566</span> <span>     * @param    string        $sValue        被設置的值
</span><span> 567</span> <span>     * @return    
</span><span> 568</span> <span>     *</span><span>*/</span>
<span> 569</span>     <span>public</span> <span>function</span> lset(<span>$sKey</span>, <span>$index</span>, <span>$sValue</span><span>)
</span><span> 570</span> <span>    {
</span><span> 571</span>         <span>if</span>(!<span>$sKey</span> || !<span>$sValue</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 572</span>         <span>return</span> self::<span>$redis</span>->lset(<span>$sKey</span>, <span>$index</span>, <span>$sValue</span><span>);
</span><span> 573</span> <span>    }
</span><span> 574</span> 
<span> 575</span>     <span>/*</span><span>*
</span><span> 576</span> <span>     * 把 value 插入存于 key 的列表中在基準值 pivot 的前面或后面。
</span><span> 577</span> <span>     * 當 key 不存在時，這個list會被看作是空list，任何操作都不會發(fā)生。
</span><span> 578</span> <span>     * 當 key 存在，但保存的不是一個list的時候，會返回error。
</span><span> 579</span> <span>     * @author    zhaoyingnan    2015-11-03 13:42
</span><span> 580</span> <span>     * @param    string        $sKey
</span><span> 581</span> <span>     * @param    string        $sPosion    在基準值前面或者后面(BEFORE or AFTER)
</span><span> 582</span> <span>     * @param    string        $pivot        列表中的基準值
</span><span> 583</span> <span>     * @param    string        $sValue        被插入的值
</span><span> 584</span> <span>     * @return    mix            經過插入操作后的list長度，或者當 pivot 值找不到的時候返回 -1。
</span><span> 585</span> <span>     *</span><span>*/</span>
<span> 586</span>     <span>public</span> <span>function</span> linsert(<span>$sKey</span>, <span>$sPosion</span>, <span>$pivot</span>, <span>$sValue</span><span>)
</span><span> 587</span> <span>    {
</span><span> 588</span>         <span>if</span>(!<span>$sKey</span> || !<span>$pivot</span> || !<span>$sValue</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 589</span>         <span>$sPosion</span> = <span>in_array</span>(<span>$sPosion</span>, <span>array</span>('BEFORE', 'AFTER')) ? <span>strtoupper</span>(<span>$sPosion</span>) : 'BEFORE'<span>;
</span><span> 590</span>         <span>return</span> self::<span>$redis</span>->linsert(<span>$sKey</span>, <span>$sPosion</span>, <span>$pivot</span>, <span>$sValue</span><span>);
</span><span> 591</span> <span>    }
</span><span> 592</span> 
<span> 593</span>     <span>/*</span><span>*
</span><span> 594</span> <span>     * 從存于 key 的列表里移除前 count 次出現(xiàn)的值為 value 的元素。 這個 count 參數(shù)通過下面幾種方式影響這個操作：
</span><span> 595</span> <span>     * count > 0: 從頭往尾移除值為 value 的元素。
</span><span> 596</span> <span>     * count <span> 597</span> <span>     * count = 0: 移除所有值為 value 的元素。
</span><span> 598</span> <span>     * 比如， LREM list -2 "hello" 會從存于 list 的列表里移除最后兩個出現(xiàn)的 "hello"。
</span><span> 599</span> <span>     * 需要注意的是，如果list里沒有存在key就會被當作空list處理，所以當 key 不存在的時候，這個命令會返回 0。
</span><span> 600</span> <span>     * @author    zhaoyingnan    2015-11-03 13:53
</span><span> 601</span> <span>     * @param    string        $sKey
</span><span> 602</span> <span>     * @param    int            $iCount        count > 0: 從頭往尾移除值為 value 的元素。 count <span> 603</span> <span>     * @param    string        $sValue        要刪除的值
</span><span> 604</span> <span>     * @return    int
</span><span> 605</span> <span>     *</span><span>*/</span>
<span> 606</span>     <span>//</span><span>public function lremu($sKey, $iCount, $sValue)
</span><span> 607</span> <span>    //{
</span><span> 608</span> <span>    //    var_dump($sValue);
</span><span> 609</span> <span>    //    if(!$sKey || !$sValue)return FALSE;
</span><span> 610</span> <span>    //    return self::$redis->lrem($sKey, intval($iCount), $sValue);
</span><span> 611</span> <span>    //}</span>
<span> 612</span> 
<span> 613</span>     <span>/*</span><span>*
</span><span> 614</span> <span>     * 修剪(trim)一個已存在的 list，這樣 list 就會只包含指定范圍的指定元素。
</span><span> 615</span> <span>     * start 和 stop 都是由0開始計數(shù)的， 這里的 0 是列表里的第一個元素（表頭），1 是第二個元素，以此類推。
</span><span> 616</span> <span>     * @author    zhaoyingnan    2015-11-03 14:45
</span><span> 617</span> <span>     * @param    string        $sKey
</span><span> 618</span> <span>     * @param    int            $iStart        指定范圍內的開始位置
</span><span> 619</span> <span>     * @param    int            $iEnd        制定范圍內的結束位置
</span><span> 620</span> <span>     * @return    bool
</span><span> 621</span> <span>     *</span><span>*/</span>
<span> 622</span>     <span>public</span> <span>function</span> <span>ltrim</span>(<span>$sKey</span>, <span>$iStart</span>, <span>$iEnd</span><span>)
</span><span> 623</span> <span>    {
</span><span> 624</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 625</span>         <span>return</span> self::<span>$redis</span>-><span>ltrim</span>(<span>$sKey</span>, <span>intval</span>(<span>$iStart</span>), <span>intval</span>(<span>$iEnd</span><span>));
</span><span> 626</span> <span>    }
</span><span> 627</span> 
<span> 628</span>     <span>/*</span><span>*
</span><span> 629</span> <span>     * 返回存儲在 key 的列表里指定范圍內的元素。
</span><span> 630</span> <span>     * start 和 end 偏移量都是基于0的下標，即list的第一個元素下標是0（list的表頭），第二個元素下標是1，以此類推。
</span><span> 631</span> <span>     * 偏移量也可以是負數(shù)，表示偏移量是從list尾部開始計數(shù)。 例如， -1 表示列表的最后一個元素，-2 是倒數(shù)第二個，以此類推。
</span><span> 632</span> <span>     * @author    zhaoyingnan    2015-11-03 14:54
</span><span> 633</span> <span>     * @param    string        $sKey
</span><span> 634</span> <span>     * @param    int            $iStart        開始位置
</span><span> 635</span> <span>     * @param    int            $iEnd        結束位置
</span><span> 636</span> <span>     * @return    array
</span><span> 637</span> <span>     *</span><span>*/</span>
<span> 638</span>     <span>public</span> <span>function</span> lrange(<span>$sKey</span>, <span>$iStart</span>, <span>$iEnd</span><span>)
</span><span> 639</span> <span>    {
</span><span> 640</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 641</span>         <span>return</span> self::<span>$redis</span>->lrange(<span>$sKey</span>, <span>intval</span>(<span>$iStart</span>), <span>intval</span>(<span>$iEnd</span><span>));
</span><span> 642</span> <span>    }
</span><span> 643</span> 
<span> 644</span>     <span>/*</span><span>*
</span><span> 645</span> <span>     * 移除并且返回 key 對應的 list 的第一個元素。
</span><span> 646</span> <span>     * @author    zhaoyingnan    2015-11-03 21:49
</span><span> 647</span> <span>     * @param    string        $sKey
</span><span> 648</span> <span>     * @return    bool
</span><span> 649</span> <span>     *</span><span>*/</span>
<span> 650</span>     <span>public</span> <span>function</span> lpop(<span>$sKey</span><span>)
</span><span> 651</span> <span>    {
</span><span> 652</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 653</span>         <span>return</span> self::<span>$redis</span>->lpop(<span>$sKey</span><span>);
</span><span> 654</span> <span>    }
</span><span> 655</span> 
<span> 656</span>     <span>/*</span><span>*
</span><span> 657</span> <span>     * 移除并返回存于 key 的 list 的最后一個元素。
</span><span> 658</span> <span>     * @author    zhaoyingnan    2015-11-03 21:49
</span><span> 659</span> <span>     * @param    string        $sKey
</span><span> 660</span> <span>     * @return    bool
</span><span> 661</span> <span>     *</span><span>*/</span>
<span> 662</span>     <span>public</span> <span>function</span> rpop(<span>$sKey</span><span>)
</span><span> 663</span> <span>    {
</span><span> 664</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 665</span>         <span>return</span> self::<span>$redis</span>->rpop(<span>$sKey</span><span>);
</span><span> 666</span> <span>    }
</span><span> 667</span> 
<span> 668</span>     <span>/*</span><span>****************** set ********************</span><span>*/</span>
<span> 669</span> 
<span> 670</span>     <span>/*</span><span>*
</span><span> 671</span> <span>     * 添加一個或多個指定的member元素到集合的 key中.
</span><span> 672</span> <span>     * 指定的一個或者多個元素member 如果已經在集合key中存在則忽略.
</span><span> 673</span> <span>     * 如果集合key 不存在，則新建集合key,并添加member元素到集合key中.
</span><span> 674</span> <span>     * 如果key 的類型不是集合則返回錯誤.
</span><span> 675</span> <span>     * @author    zhaoyingnan    2015-11-03 21:55
</span><span> 676</span> <span>     * @param    string        $sKey
</span><span> 677</span> <span>     * @param    array        $arMember    被添加的元素的數(shù)組
</span><span> 678</span> <span>     * @return    int            返回新成功添加到集合里元素的數(shù)量，不包括已經存在于集合中的元素.
</span><span> 679</span> <span>     *</span><span>*/</span>
<span> 680</span>     <span>public</span> <span>function</span> sadd(<span>$sKey</span>, <span>$arMember</span> = <span>array</span><span>())
</span><span> 681</span> <span>    {
</span><span> 682</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> <span>FALSE</span><span>;
</span><span> 683</span>         <span>$iCount</span> = 0<span>;
</span><span> 684</span>         <span>foreach</span>(<span>$arMember</span> <span>as</span> <span>$val</span><span>)
</span><span> 685</span> <span>        {
</span><span> 686</span>             <span>if</span>(self::<span>$redis</span>->sadd(<span>$sKey</span>, <span>$val</span><span>))
</span><span> 687</span>                 <span>$iCount</span>++<span>;
</span><span> 688</span> <span>        }
</span><span> 689</span>         <span>return</span> <span>$iCount</span><span>;
</span><span> 690</span> <span>    }
</span><span> 691</span> 
<span> 692</span>     <span>/*</span><span>*
</span><span> 693</span> <span>     * 返回集合存儲的key的基數(shù) (集合元素的數(shù)量).
</span><span> 694</span> <span>     * @author    zhaoyingnan    2015-11-03 22:09
</span><span> 695</span> <span>     * @param    string        $sKey
</span><span> 696</span> <span>     * @return    int
</span><span> 697</span> <span>     *</span><span>*/</span>
<span> 698</span>     <span>public</span> <span>function</span> scard(<span>$sKey</span><span>)
</span><span> 699</span> <span>    {
</span><span> 700</span>         <span>if</span>(!<span>$sKey</span>)<span>return</span> 0<span>;
</span><span> 701</span>         <span>return</span> self::<span>$redis</span>->scard(<span>$sKey</span><span>);
</span><span> 702</span> <span>    }
</span><span> 703</span> 
<span> 704</span>     <span>/*</span><span>*
</span><span> 705</span> <span>     * 返回一個集合與給定集合的差集的元素.
</span><span> 706</span> <span>     * @author    zhaoyingnan    2015-11-03 22:13
</span><span> 707</span> <span>     * @param    array        $arKey
</span><span> 708</span> <span>     * @return    array
</span><span> 709</span> <span>     *</span><span>*/</span>
<span> 710</span>     <span>public</span> <span>function</span> sdiff(<span>$arKey</span><span>)
</span><span> 711</span> <span>    {
</span><span> 712</span>         <span>if</span>(!<span>$arKey</span>)<span>return</span> <span>array</span><span>();
</span><span> 713</span>         <span>return</span> self::<span>$redis</span>->sdiff(<span>$arKey</span><span>);
</span><span> 714</span> <span>    }
</span><span> 715</span> 
<span> 716</span>     <span>/*</span><span>*
</span><span> 717</span> <span>     * 該命令類似于 SDIFF, 不同之處在于該命令不返回結果集，而是將結果存放在destination集合中.
</span><span> 718</span> <span>     * 如果destination 已經存在, 則將其覆蓋重寫.
</span><span> 719</span> <span>     * @author    zhaoyingnan    2015-11-04 10:16
</span><span> 720</span> <span>     * @param    string        $sNewKey
</span><span> 721</span> <span>     * @param    array        $arKey
</span><span> 722</span> <span>     * @return    int            結果集元素的個數(shù).
</span><span> 723</span> <span>     *</span><span>*/</span>
<span> 724</span>     <span>public</span> <span>function</span> sdiffstore(<span>$sNewKey</span>, <span>$arKey</span><span>)
</span><span> 725</span> <span>    {
</span><span> 726</span>         <span>if</span>(!<span>$arKey</span> || !<span>$sNewKey</span>)<span>return</span> 0<span>;
</span><span> 727</span>         <span>if</span>(<span>$arResult</span> = self::<span>$redis</span>->sdiff(<span>$arKey</span><span>))
</span><span> 728</span>             <span>return</span> <span>$this</span>->sadd(<span>$sNewKey</span>, <span>$arResult</span><span>);
</span><span> 729</span>         <span>return</span> 0<span>;
</span><span> 730</span> <span>    }
</span><span> 731</span> 
<span> 732</span>     <span>/*</span><span>*
</span><span> 733</span> <span>     * 返回指定所有的集合的成員的交集.
</span><span> 734</span> <span>     * @author    zhaoyingnan    2015-11-04 10:18
</span><span> 735</span> <span>     * @param    array        $arKey
</span><span> 736</span> <span>     * @return    array
</span><span> 737</span> <span>     *</span><span>*/</span>
<span> 738</span>     <span>public</span> <span>function</span> sinter(<span>$arKey</span><span>)
</span><span> 739</span> <span>    {
</span><span> 740</span>         <span>if</span>(!<span>$arKey</span>)<span>return</span> <span>array</span><span>();
</span><span> 741</span>         <span>return</span> self::<sp></sp></span></span>
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