Earlier I've learned how to remove file versions from wordpress style and script file source links inside the wp_head function. From here: How to remove file versions from the file source links in wp_head?

I had a good reason needing that action. Why? While writing a cache manifest file, inside that file I managed to write also absolute source links, but without ?ver= parameter. wp_head has generated the used theme with ?ver= parameter the syle and script file inclusions. So there was smooth differences between the cache data and theme data. I don't know if that was the reason not getting the styles while being offline my test site.


Now what I'd like to know, is the way how can I add ?ver= parameter to the cache manifest file entries. I'm writing this way the cache file's lines:

$hashes = "";
$network = array("\n\nNETWORK:");
$cache = array("\n\nCACHE:");
$path = get_stylesheet_directory()."/";
$dir = new RecursiveDirectoryIterator( $path );

foreach(new RecursiveIteratorIterator($dir) as $file) {
    if ($file->IsFile() && $file != "./manifest.php" && substr($file->getFilename(), 0, 1) != ".") {
        if(preg_match('/.php$/', $file)) {
            if (isAllowedExtension($file))
                array_push($network,"\n" . str_replace($path, './', $file));
        } else {
            if (isAllowedExtension($file))
                array_push($cache,"\n" . str_replace($path, './', $file));

        $hashes .= md5_file($file);

Hence this aren't absolute url's, I'm just curious how could be possible adding the ?ver= parameter to this file url's? :)



if( !strpos( $file, '?ver=' ) ) {
    $file = add_query_arg( 'ver', $file );
    return $file;

This is only a try... Not complete code. First I think we should check if the file has any version, then add the version parameter after the source url.


You could use add_query_arg():

$url = add_query_arg( 'ver', $GLOBALS['wp_version'], $url );

But I see one problem: How can you be sure the resource is actually used? And how do you know the author has not passed a custom version?

So you can do that only in a very controlled environment: when you know everything about the code.

  • Yes, you're right. The above code is implemented in a function which is runned within the next actions: save_post, switch_theme, register_activation_hook. If the site administrator would upload a new versioned stylesheet for example, he will need to deactivate and activate again the plugin. I would not use a cronjob and don't see another dynamicaly way to control this versioning issue. BTW, your code works like a charm integrated into my example. Thanks a lot! :) – Grávuj Miklós Henrich Apr 18 '13 at 16:09
  • Oh, i did a mistake. After each every file is added the ?ver=3.5.1 Hehe. Which is wrong. I think that is the wp version instead of the required versions. – Grávuj Miklós Henrich Apr 18 '13 at 16:10

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