Backup MySQL Menggunakan PHP

backup_mysql.php

<?php
db_backup('hostname','user','password','namadb');

function db_backup($host,$user,$pass,$namadb,$tables = '*')
{
 $link = mysql_connect($host,$user,$pass);
 mysql_select_db($namadb,$link);
 
 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);
 }
 
 foreach($tables as $table)
 {
 $result = mysql_query('SELECT * FROM '.$table);
 echo mysql_error();
 $num_fields = mysql_num_fields($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";
 }
 
 $handle = fopen('db_backup_'.$namadb.'_'.date('dmY').'.sql','w+');
 fwrite($handle,$return);
 fclose($handle);
 echo "Selesai...";
}

?>