String Limiter - Limit a string to a maximum length of $limit and append '...' before returning value. Originally written as a ModX snippet

stringLimiter.php

<?php
/**
  * Limit a string to a maximum length of $limit and append ... before returning
  * Default Limit: 30
  */
	
	if(!isset($string)){ return; }
	if(!isset($limit)){ $limit = 30; }
	
	if(strlen($string) > $limit){ // if the string is too long
		$substr = substr($string, 0, $limit); // shrink the string
		$strlast = $substr[strlen($substr) -1]; // get the last character in the string
		if($strlast == ' '){ $substr = substr($substr, 0, -1); } // if last char is a space, trim it off
		
		return $substr . '...'; // append ...
	}
	
	return $string; // return original string