La fonction str_split est tout le temps définie en PHP 5. On l'enlève.

    }

}

if (!function_exists('str_split'))

{

    /**

     * Splits a string into an array of strings with specified length.

     * Compatability with older verions of PHP

     *

     * @param string $string Chaîne

     * @param int $split_length Longueur de coupe

     * @return array

     */

    function str_split($string, $split_length = 1)

    {

	      $result = array();

        $sign = ($split_length < 0) ? -1 : 1;

        $strlen = strlen($string);

        $split_length = abs($split_length);

        if (($split_length == 0) || ($strlen == 0)) {

            $result = false;

        } elseif ($split_length >= $strlen) {

            $result[] = $string;

        } else {

            $length = $split_length;

            for ($i = 0; $i < $strlen; $i++)

            {

                $i = (($sign < 0) ? $i + $length : $i);

                $result[] = substr($string, $sign*$i, $length);

                $i--;

                $i = (($sign < 0) ? $i : $i + $length);

                $length = (($i + $split_length) > $strlen)

                          ? ($strlen - ($i + 1))

                          : $split_length;

            }

        }

        return $result;

    }

}

/**

 * Main routine called from an application using this include.

 *

    $obj = new nanoSha2((defined('_NANO_SHA2_UPPER')) ? true : false);

    return $obj->hash($str, $ig_func);

}

// 2009-07-23: Added check for function as the Suhosin plugin adds this routine.

if (!function_exists('sha256')) {

	/**