Convert number to persion in php

convert_number_to_persion.php

	function persian_digit($text){
    $text = str_replace('0' , '٠' , $text);
    $text = str_replace('1' , '١' , $text);
    $text = str_replace('2' , '٢' , $text);
    $text = str_replace('3' , '٣' , $text);
    $text = str_replace('4' , '۴' , $text);
    $text = str_replace('5' , '۵' , $text);
    $text = str_replace('6' , '۶' , $text);
    $text = str_replace('7' , '٧' , $text);
    $text = str_replace('8' , '٨' , $text);
    $text = str_replace('9' , '٩' , $text);
    return $text;
} 
echo persian_digit($string);