backup mysql ผ่านหน้าเว็บ พอมีแนวทางบ้างไหมครับ . . .

$db=new mysqli('host', 'user', 'psw', 'dbname');
$tb = $db->query('show tables');
while( $tb_ro=  $tb->fetch_row()){
   $rs = $db->query('select * from '.$tb_ro[0]);
   $values='';
   while($ro=$rs->fetch_row()){
       $row = ''
       foreach($ro as $field){
           if( preg_match('/^[0-9]+(\.[0-9]+)*$/', $field)) $fld = "'$field'"; // ตรวจสอบ ตัวเลข 
           else if(preg_match('/[\x00-\x1f]/', $field)) $fld='0x'.bin2hex($field); // ตรวจสอบ blob | binary string
           else $fld = "'".$db->real_escape_string($field)."'";
           $row .= ($row? ',' : '') . $fld;
       }
       $values .= ($values? ',' : '') . "($row)";
   }
   $target=$tb_ro[0].date('Ymd').'.sql';
   fwrite( $f=fopen( $target, 'w'), 'insert into '.$tb_ro[0].' values '.$values.';'); fclose($f); 
}

<?php
include 'config.php';
$newDB = new DB();
$newDB2 = new DB();

$backupFile = "backup/transport-".date('Y-m-d').".sql';

$sql = "show tables";
$res = $newDB->query($sql);
while($data = $newDB->fetch_array()){
    $sql2 = "SELECT * INTO OUTFILE '$backupFile' FROM {$data[0]}";
    $newDB2->query($sql2);
}
include 'closedb.php';
?> 

// ถ้าจะโหลดข้อมูลคืนตาราง
// "LOAD DATA INFILE 'backup/transport-2015-07-05' INTO TABLE $tableName";

<?
// Report all errors
error_reporting(E_ALL);

/**
 * Define database parameters here
 */
define("DB_USER", 'xxxxxxxxxxxxxxxxxxxxxxx');
define("DB_PASSWORD", 'yyyyyyyyyyyyyyyyy');
define("DB_NAME", 'zzzzzzzzzzzzzzz');
define("DB_HOST", 'localhost');
define("OUTPUT_DIR", 'cache');
define("TABLES", '*');

/**
 * Instantiate Backup_Database and perform backup
 */
$backupDatabase = new Backup_Database(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
$status = $backupDatabase->backupTables(TABLES, OUTPUT_DIR) ? 'OK' : 'KO';
echo "


Backup result: ".$status;

/**
 * The Backup_Database class
 */
class Backup_Database {
    /**
     * Host where database is located
     */
    var $host = 'localhost';

    /**
     * Username used to connect to database
     */
    var $username = 'xxxxxxxxxxxxxxxxxxxxxxx';

    /**
     * Password used to connect to database
     */
    var $passwd = 'yyyyyyyyyyyyyyyyy';

    /**
     * Database to backup
     */
    var $dbName = 'zzzzzzzzzzzzzzz';

    /**
     * Database charset
     */
    var $charset = 'cache';

    /**
     * Constructor initializes database
     */
    function Backup_Database($host, $username, $passwd, $dbName, $charset = 'utf8')
    {
        $this->host     = $host;
        $this->username = $username;
        $this->passwd   = $passwd;
        $this->dbName   = $dbName;
        $this->charset  = $charset;

        $this->initializeDatabase();
    }

    protected function initializeDatabase()
    {
        $conn = mysql_connect($this->host, $this->username, $this->passwd);
        mysql_select_db($this->dbName, $conn);
        if (! mysql_set_charset ($this->charset, $conn))
        {
            mysql_query('SET NAMES '.$this->charset);
        }
    }

    /**
     * Backup the whole database or just some tables
     * Use '*' for whole database or 'table1 table2 table3...'
     * @param string $tables
     */
    public function backupTables($tables = '*', $outputDir = '.')
    {
        try
        {
            /**
            * Tables to export
            */
            if($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);
            }

            $sql = 'CREATE DATABASE IF NOT EXISTS '.$this->dbName.";\n\n";
            $sql .= 'USE '.$this->dbName.";\n\n";

            /**
            * Iterate tables
            */
            foreach($tables as $table)
            {
                echo "Backing up ".$table." table...";

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

                $sql .= 'DROP TABLE IF EXISTS '.$table.';';
                $row2 = mysql_fetch_row(mysql_query('SHOW CREATE TABLE '.$table));
                $sql.= "\n\n".$row2[1].";\n\n";

                for ($i = 0; $i < $numFields; $i++) 
                {
                    while($row = mysql_fetch_row($result))
                    {
                        $sql .= 'INSERT INTO '.$table.' VALUES(';
                        for($j=0; $j<$numFields; $j++) 
                        {
                            $row[$j] = addslashes($row[$j]);
                            $row[$j] = ereg_replace("\n","\\n",$row[$j]);
                            if (isset($row[$j]))
                            {
                                $sql .= '"'.$row[$j].'"' ;
                            }
                            else
                            {
                                $sql.= '""';
                            }

                            if ($j < ($numFields-1))
                            {
                                $sql .= ',';
                            }
                        }

                        $sql.= ");\n";
                    }
                }

                $sql.="\n\n\n";

                echo " OK" . "
";
            }
        }
        catch (Exception $e)
        {
            var_dump($e->getMessage());
            return false;
        }

        return $this->saveFile($sql, $outputDir);
    }

    /**
     * Save SQL to file
     * @param string $sql
     */
    protected function saveFile(&$sql, $outputDir = '.')
    {
        if (!$sql) return false;

        try
        {
            $handle = fopen($outputDir.'/db-backup-'.$this->dbName.'-'.date("Ymd-His", time()).'.sql','w+');
            fwrite($handle, $sql);
            fclose($handle);
        }
        catch (Exception $e)
        {
            var_dump($e->getMessage());
            return false;
        }

        return true;
    }
}
?>

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