convert relative path to url

[The Little Guy]

Any thoughts on this function? Basically what it does is take the current users location ($location) and a relative path ($link) and convert it to a valid URL. I do know that this does work on my example, but does anyone have any suggestions on this?

 

<?php
$location = "http://mysite.com/pages/images/docs/myfile.html";
$link = "../../games/game.html";

function resolve_url($current, $link){
$ui = (object)parse_url($current);
$domain = $ui->scheme."://".$ui->host;
$levelsA = preg_split("/\.\.\//", $link);
$levels = 0;
foreach($levelsA as $l){
	if(empty($l)) $levels++;
}
$currentA = preg_split("/\//", $current);
$length = count($currentA);
array_splice($currentA, -$levels - 1);
$currentA[] = preg_replace("/\.\.\//", "", $link);
return implode("/", $currentA);
}

echo resolve_url($location, $link);
?>

 

Thanks!

[The Little Guy]

found this, which seems too work too:

 

function rel2abs($rel, $base){
    /* return if already absolute URL */
    if (parse_url($rel, PHP_URL_SCHEME) != '') return $rel;

    /* queries and anchors */
    if ($rel[0]=='#' || $rel[0]=='?') return $base.$rel;

    /* parse base URL and convert to local variables:
       $scheme, $host, $path */
    extract(parse_url($base));

    /* remove non-directory element from path */
    $path = preg_replace('#/[^/]*$#', '', $path);

    /* destroy path if relative url points to root */
    if ($rel[0] == '/') $path = '';

    /* dirty absolute URL */
    $abs = "$host$path/$rel";

    /* replace '//' or '/./' or '/foo/../' with '/' */
    $re = array('#(/\.?/)#', '#/(?!\.\.)[^/]+/\.\./#');
    for($n=1; $n>0; $abs=preg_replace($re, '/', $abs, -1, $n)) {}

    /* absolute URL is ready! */
    return $scheme.'://'.$abs;
}