method for generating slugs

Text.php

	public static function slug($s, $maxLength = null) {
		// Make the string lower case
		$s = strtolower($s);

		// Turn forward slashes into spaces.
		// NOTE: We turn them into spaces, so they're properly condensed down to
		// a single dash later on.
		$s = str_replace('/',' ',$s);

		// Remove any non-alphanumeric, space, or hyphen characters
		$s = preg_replace("/[^a-z0-9\s-]/", "", $s);

		// Replace consecutive space/hyphens with a single space (trimming edge spaces)
		$s = trim(preg_replace("/[\s-]+/", " ", $s));

		// If a max lenght was specified, trim to that length (trimming space)
		if( is_numeric($maxLength) ) {
			$s = trim(substr($s, 0, (int)$maxLength));
		}

		// Replace all spaces with a single hyphen.
		$s = preg_replace("/\s/", "-", $s);

		return $s;
	}