Replaces all spaces and stupid character from a string, this function can be used while creating SEO url.

gistfile1.php

function safename($title){
// replaces every stupid character form a string with - ;
    $title = str_replace("&", "and", $title);
		$arrStupid = array('.com', '(tm)', ' ', '*', "'s",  '"', ",", ":", ";", "@", "#", "(", ")", "?", "!", "_",
							 "$","+", "=", "|", '/', "~", "`s", "`", "\\", "^", "[","]","{", "}", "<", ">", "%", "™");

		$title = htmlentities($title);
  		$title = preg_replace('/&([a-zA-Z])(.*?);/','$1',$title); // get rid of bogus characters
		$title = strtolower("$title");
		$title = str_replace(".", "", $title);
		$title = str_replace($arrStupid, "-", $title);
		$flag = 1;
			while($flag){ 
  			  $newtitle = str_replace("--","-",$title);
				if($title != $newtitle) { 
					$flag = 1;
				 }
				else $flag = 0;
 			  $title = $newtitle;
			}
		$len = strlen($title);
		if($title[$len-1] == "-") {
			$title = substr($title, 0, $len-1);
		}
		return $title;
}