Simple String Hash Function On PHP

shash.php

<?php
function e($str, $modul) {
	$intLength = strlen($str) / 4;
	$sum = 0;
	$MUL = 256;

	for($j = 0; $j < $intLength; $j++) {
		$c = substr($str, $j * 4, 4);
		$mult = 1;
		for ($k = 0; $k < strlen($c); $k++) {
			$sum += ord($c[$k]) * $mult;
			$mult *= $MUL;
		}
	}

	$c = substr($str, $intLength * 4);
		$mult = 1;
		for ($k = 0; $k < strlen($c); $k++) {
			$sum += ord($c[$k]) * $mult;
			$mult *= $MUL;
		}
	return $sum % $modul;
}


/* FUNCTION USAGE */
// Any prime

$prime = 2147483123;
$s = "Hello bro. This is simple hash string function. Yo. RTFM X_X";
echo "Hash(" . $s . ") = ". e($s, $prime);