PHP: Parse url params

parse_url.php

<?php

/**
 * Parses a url to extract the query parameters from it as a assoc array
 * @param string $url
 * @param bool $decode (optional) apply url decode
 * @return array
 */
function parseUrl($url, $decode = false)
{
    $urlData = parse_url($url);

    if (empty($urlData['query'])) { return null; }

    $query = explode("&", $urlData['query']);
    $parameters = array();

    foreach($query as $parameter) {
        $param = explode("=", $parameter);

        if (!empty($param) && count($param) == 2)
            $parameters[$param[0]] = $decode == true ? urldecode($param[1]) : $param[1];
    }

    return $parameters;
}

hi, this is my solution:
i want to get www.siteName.com/controllerName/actionName?id=12&test1=test2

$url1=parse_url($url);
parse_str($url1['query'],$url1['query']);