CODEWITHSUNDEEP
phpregexunicodepreg-match
Peyman Mohamadpour
Peyman Mohamadpour

Reputation: 17964

HTML form validation - filtering unicode (Persian) characters in PHP without using preg_match()

I have HTML form input to be validated. The input should only use Unicode (Persian) letters and numeric nothing else. I used the preg_match like this:

preg_match('/^[آإأابپتثجچحخدذرزژسشصضطظعغفقکگلمنهۀةوؤیيئءًٌٍَُِّ\s]+$/u',$input);

and it works fine on localhost, but as my hosting does not have PCRE with Unicode support installed and I am not going to ask them to install it for me, I am looking for another working way to accomplish this.

Are there any ways in which I can validate unicode input, without using preg_match() function?

Duplicate Flag

Accrding to the duplicate flag, I am not after a PCRE, 'preg_match' way. The linked question is a PCRE 'preg_match' way.

Upvotes: 0

Views: 785

Answers (1)

revo
revo

Reputation: 48751

There are some specific multi-byte functions that you may benefit from when PCRE is not compiled with PCRE_UTF8 flag:

mb_regex_encoding('UTF-8');
var_dump(mb_ereg('^[آ-یء\s]+$', "سلام پارسی تست می کنیم آإأابپتثجچحخدذرزژسشصضطظعغفقکگلمنهۀةوؤیيئًٌٍَُِّ"));
// int(1)

Here آ-ی character range includes more characters than Persian has (actually U+0622 - U+06CC, look at corresponding Unicode table) also note that no delimiters are specified.

Upvotes: 1

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