Validierung eines Iban Codes

Diese PHP Funktion validiert einen Iban Code

function ValidIban($value) {

    $iban = false;

    $value= strtoupper(trim($value));

    # Change US text into your country code

    if(preg_match('/^US\d{7}0[A-Z0-9]{16}$/', $value)) {

        $number= substr($value,4,22).'2927'.substr($value,2,2);

        $number= str_replace(

            array('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'),

            array(10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35),

            $number

        );

        // Iban var -

        $iban = (1 == bcmod($number,97)) ? true:false;

    }

// Return to print

return $iban;

}[/php]

Quelle: phpsnips.com