Mine

<?function _rand($deger){	$array = array(		'Q','W','E','R','T','Y','U','I','O','P','A','S','D','F','G','H','J','K','L','Z','X','C','V','B','N','M',		'0','1','2','3','4','5','6','7','8','9'		);	shuffle($array);	if ($deger < 0) {		echo "Hata 0 Dan Büyük De&#287;er Girmelisiniz.";	}	else	{		$olusan = "";		for ($i=0; $i<=$deger; $i++)		{			$olusan .= $array[$i];		}	}	return $olusan;}echo _rand($_GET["deger"]);?>