Saturday, 27 June 2015

Mysql: Backup Your MySQL Database Using PHP

<?php 





// Backup Your MySQL Database Using PHP




// ------------------------------------




// Use : backup_tables('localhost','username','password','blog');



// ( - 5th param would be the tables, empty or * will get all the complete db. )














/* Backup the db OR just a table */




function backup_tables($host,$user,$pass,$name,$tables = '*') {




 




 $link = mysql_connect($host,$user,$pass);




 mysql_select_db($name,$link);




 




 // Get all of the tables




 if($tables == '*') {




  $tables = array();




  $result = mysql_query('SHOW TABLES');




  while($row = mysql_fetch_row($result)) {




   $tables[] = $row[0];




  }




 } else {




  $tables = is_array($tables) ? $tables : explode(',',$tables);




 }




 




 // Cycle through




 foreach($tables as $table) {




  $result = mysql_query('SELECT * FROM '.$table);




  $num_fields = mysql_num_fields($result);




  




  $return.= 'DROP TABLE '.$table.';';




  $row2 = mysql_fetch_row(mysql_query('SHOW CREATE TABLE '.$table));




  $return.= "\n\n".$row2[1].";\n\n";




  




  for ($i = 0; $i < $num_fields; $i++) {




   while($row = mysql_fetch_row($result)) {




    $return.= 'INSERT INTO '.$table.' VALUES(';




    for($j=0; $j<$num_fields; $j++) {




     $row[$j] = addslashes($row[$j]);




     $row[$j] = ereg_replace("\n","\\n",$row[$j]);




     if (isset($row[$j])) { $return.= '"'.$row[$j].'"' ; } else { $return.= '""'; }




     if ($j<($num_fields-1)) { $return.= ','; }




    }




    $return.= ");\n";




   }




  }




  $return.="\n\n\n";




 }




 




 // Save file




 $handle = fopen('db-backup-'.time().'-'.(md5(implode(',',$tables))).'.sql','w+');




 fwrite($handle,$return);




 fclose($handle);




}









?>

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