Funcion para crear urls amigables para PHP

url-amigable.php

 <?php 

function urls_amigables($url) {  
        $url = strtolower($url);
       
        $find = array('á', 'é', 'í', 'ó', 'ú', 'ñ');
        $repl = array('a', 'e', 'i', 'o', 'u', 'n');
        $url = str_replace ($find, $repl, $url);
        
        $find = array(' ', '&', '\r\n', '\n', '+');
        $url = str_replace ($find, '-', $url);
      
        $find = array('/[^a-z0-9\-<>]/', '/[\-]+/', '/<[^>]*>/');
        $repl = array('', '-', '');
        $url = preg_replace ($find, $repl, $url);
        return $url;
  }

?>