Slug Generator that works! JavaScript and PHP

gistfile1.php

<?php
//ref: http://cubiq.org/the-perfect-php-clean-url-generator
setlocale(LC_ALL, 'en_US.UTF8');

function toAscii($str, $replace=array(), $delimiter='-') {
     if( !empty($replace) ) {
          $str = str_replace((array)$replace, ' ', $str);
     }

     $clean = iconv('UTF-8', 'ASCII//TRANSLIT', $str);
     $clean = preg_replace("/[^a-zA-Z0-9\/_|+ -]/", '', $clean);
     $clean = strtolower(trim($clean, '-'));
     $clean = preg_replace("/[\/_|+ -]+/", $delimiter, $clean);

     return $clean;
}

gistfile2.js

function string_to_slug(str) {
    str = str.replace(/^\s+|\s+$/g, ""); // trim
    str = str.toLowerCase();
    
    // remove accents, swap ñ for n, etc
    var from = "àáäâèéëêìíïîòóöôùúüûñç·/_,:;";
    var to   = "aaaaeeeeiiiioooouuuunc------";
    for (var i=0, l=from.length ; i<l ; i++) {
        str = str.replace(new RegExp(from.charAt(i), "g"), to.charAt(i));
    }
    
    str = str.replace(/[^a-z0-9 -]/g, "") // remove invalid chars
        .replace(/\s+/g, "-") // collapse whitespace and replace by -
        .replace(/-+/g, "-"); // collapse dashes
    
    return str;
}