Question

when I send form and check for the arabic and english and numeric chars the code below not working :

<?
$username = $_POST["alalala"];
if ($username){
if (!preg_match("/^[a-zA-Z0-9ا-ي ]+$/i", $username)){
echo "error";
}else{
echo "ok";
}  
}
?>
<form method="post">
<input type="text" name="alalala">

the regex can’t find arabic in $_post[alalala]

EDIT

not working :s, the problem not in p{Arabic}

it’s in finding the arabic chars only when form submit

EDIT2 : when i change the line

$username = $_POST["alalala"];

to

$username = "any thing نستيتيلا";

the regex find the arabic chars

Answer 1

try https://stackoverflow.com/a/3631408/731179

<?php 
preg_match("/^[a-zA-Z\p{Arabic}0-9\s\-]+$/u", "whatever"); 
?>

PHP supports PCRE

http://fi.php.net/manual/en/function.preg-match.php#105324
http://fi.php.net/manual/en/regexp.reference.unicode.php