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? php教程 PHP源碼 PHP ?? ??????? SQL ???

PHP ?? ??????? SQL ???

Nov 09, 2016 pm 02:55 PM

<!?php  
    
/******   備份數(shù)據(jù)庫結(jié)構(gòu) ******/
      
      /* 
      函數(shù)名稱:table2sql() 
      函數(shù)功能:把表的結(jié)構(gòu)轉(zhuǎn)換成為SQL 
      函數(shù)參數(shù):$table: 要進行提取的表名 
      返 回 值:返回提取后的結(jié)果,SQL集合 
      函數(shù)作者:heiyeluren 
      */
      
     function table2sql($table)  
      {  
          global $db;  
         $tabledump = "DROP TABLE IF EXISTS $table;\n";  
         $createtable = $db--->query("SHOW CREATE TABLE $table");  
         $create = $db->fetch_row($createtable);  
         $tabledump .= $create[1].";\n\n";  
          return $tabledump;  
      }  
      
      
     /****** 備份數(shù)據(jù)庫結(jié)構(gòu)和所有數(shù)據(jù) ******/
      /* 
      函數(shù)名稱:data2sql() 
      函數(shù)功能:把表的結(jié)構(gòu)和數(shù)據(jù)轉(zhuǎn)換成為SQL 
      函數(shù)參數(shù):$table: 要進行提取的表名 
      返 回 值:返回提取后的結(jié)果,SQL集合 
      函數(shù)作者:heiyeluren 
      */
     function data2sql($table)  
      {  
          global $db;  
         $tabledump = "DROP TABLE IF EXISTS $table;\n";  
         $createtable = $db->query("SHOW CREATE TABLE $table");  
         $create = $db->fetch_row($createtable);  
         $tabledump .= $create[1].";\n\n";  
      
         $rows = $db->query("SELECT * FROM $table");  
         $numfields = $db->num_fields($rows);  
         $numrows = $db->num_rows($rows);  
          while ($row = $db->fetch_row($rows))  
          {  
             $comma = "";  
             $tabledump .= "INSERT INTO $table VALUES(";  
              for($i = 0; $i < $numfields; $i++)  
              {  
                 $tabledump .= $comma."&#39;".mysql_escape_string($row[$i])."&#39;";  
                 $comma = ",";  
              }  
             $tabledump .= ");\n";  
          }  
         $tabledump .= "\n";  
      
          return $tabledump;  
      }  
?>  
    
<!--?php       
$host="localhost"; //主機名       
$user="root"; //MYSQL用戶名       
$password="root"; //密碼       
$dbname="dedecmsv4"; //備份的數(shù)據(jù)庫       
       
mysql_connect($host,$user,$password);       
mysql_select_db($dbname);       
       
$q1=mysql_query("show tables");       
while($t=mysql_fetch_array($q1)){       
$table=$t[0];       
$q2=mysql_query("show create table `$table`");       
$sql=mysql_fetch_array($q2);       
$mysql.=$sql[&#39;Create Table&#39;].";\r\n\r\n";#DDL       
       
$q3=mysql_query("select * from `$table`");       
while($data=mysql_fetch_assoc($q3))       
{       
$keys=array_keys($data);       
$keys=array_map(&#39;addslashes&#39;,$keys);       
$keys=join(&#39;`,`&#39;,$keys);       
$keys="`".$keys."`";       
$vals=array_values($data);       
$vals=array_map(&#39;addslashes&#39;,$vals);       
$vals=join("&#39;,&#39;",$vals);       
$vals="&#39;".$vals."&#39;";       
       
$mysql.="insert into `$table`($keys) values($vals);\r\n";       
}       
$mysql.="\r\n";       
       
}       
$filename=date(&#39;Ymd&#39;)."_".$dbname.".sql"; //文件名為當(dāng)天的日期       
$fp = fopen($filename,&#39;w&#39;);       
fputs($fp,$mysql);       
fclose($fp);       
echo "數(shù)據(jù)備份成功,生成備份文件".$filename;       
?>

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