using preg_match to detect persian (farsi) characters in string

Question

I am trying to validate form data from server-side. my interest is that the user just fill the form by Persian characters.

I am using this code:

$na         


        

Answer 1

You should use this:

if(preg_match("/^[آ ا ب پ ت ث ج چ ح خ د ذ ر ز ژ س ش ص ض ط ظ ع غ ف ق ک گ ل م ن و ه ی]/", $_POST['name']))