本文主要和大家分享微信授權(quán)后用戶頭像保存到服務(wù)器實現(xiàn)方法，最近做一個有關(guān)微信授權(quán)登錄的項目，關(guān)于授權(quán)就不多說了，我獲取到用戶基本信息,格式如下：

$user_info?=?'{"openid":"xx","nickname":"nice花椒.","sex":2,"language":"zh_CN","city":"杭州","province":"浙江","country":"中國","headimgurl":"http:\/\/wx.qlogo.cn\/mmopen\/vi_32\/Q0j4TwGTfTJPpziaqOoIpGia9ZVj9fheAwLmTiavV4rxR40NQ1zPQPyiaMY58FEISDIfpn0q5VeeXliaKyiaiabgK2ZHg\/0","privilege":[]}';

直接把headimgurl入庫保存，bug來了。

話不多說，進入正題：

微信返回的是json格式

$user_arr?=?json_decode($user_info,?true);

獲取用戶openid對比數(shù)據(jù)庫，判斷是不是首次授權(quán)

$mem_info=?$member->getuserinfo(array('openid'=>$user_arr['openid']));

首次授權(quán)或者頭像鏈接地址與上次不同

if(!$mem_info?||?$mem_info['wximage']!=$user_info['headimg']){
????$headimgurl?=?saveheadimgurl($user_arr['headimgurl']);
????$headimg???0?:?$headimg='lib/avata.jpg'?;
????if($mem_info['wximage']!=$user_info['headimg']){
????????unlink($mem_info['headimg']);
????}
????//快來寫你的注冊或者修改代碼吧！
}

保存圖片

function?saveheadimgurl($headimg){
????$header?=?array(
?????????'User-Agent:?Mozilla/5.0?(Windows?NT?6.1;?Win64;?x64;?rv:45.0)?Gecko/20100101?Firefox/45.0',??????
?????????'Accept-Language:?zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3',??????
?????????'Accept-Encoding:?gzip,?deflate',
????);
????$curl?=?curl_init();
????curl_setopt($curl,?CURLOPT_URL,?$headimg);
????curl_setopt($curl,?CURLOPT_RETURNTRANSFER,?true);??
????curl_setopt($curl,?CURLOPT_FOLLOWLOCATION,?true);
????curl_setopt($curl,?CURLOPT_HTTPHEADER,$header);
????$dataimg?=?curl_exec($curl);
????$code?=?curl_getinfo($curl,?CURLINFO_HTTP_CODE);
????curl_close($curl);??
????if?($code?==?200)?{?????
????????$imgBase64Code?=?"data:image/jpeg;base64,"?.?base64_encode($dataimg);
????}??
????$img_content=$imgBase64Code;
????if?(preg_match('/^(data:\s*image\/(\w+);base64,)/',?$img_content,?$result)){???
?????????$type?=?$result[2];
?????????create(DOFILESPATH."head");?
?????????$new_file?=?DOFILESPATH."head/".md5(uniqid(rand())).".{$type}";?
?????????if?(file_put_contents($new_file,?base64_decode(str_replace($result[1],'',?$img_content))))??
?????????{??
?????????????return?$new_file;
?????????}
?????}
?????return?false;
}

指定位置創(chuàng)建文件

function?create($dir){
????if(is_dir($dir)){
????????$temp?=?explode('/',$dir);
????????$cur_dir?=?'';
????????for($i=0;?$i<count($temp);?$i++){
????????????$cur_dir?.=?$temp[$i].'/';
????????????if(!is_dir($cur_dir)){
????????????????@mkdir($cur_dir,777);
????????????}
????????}
????}
}

希望對大家有用。

相關(guān)推薦：

微信授權(quán)登錄如何使用？總結(jié)微信授權(quán)登錄實例用法、

微信開發(fā)之微信授權(quán)詳解

IOS實現(xiàn)微信授權(quán)登錄功能實例代碼

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