Random String Generator

<?php

// generate a random string of a particular length
function random_string($length) {
	$string = "";

	// random a string with at least $length characters
	for ($i = 0; $i <= ($length/32); $i++)
		$string .= md5(time() + rand(0, 99));

	// start point limit
	$max_start_index = (32*$i)-$length;

	// take the string
	$random_string = substr($string, rand(0, $max_start_index), $length);

	return $random_string;
}

?>

To use the function:

<?php

// Gets a random string of length 24
$random_string = random_string(24);

?>