OpCache path invalidation script

path_opcache_invalidation.php

<?php
// Untested, retrieved and reformatted from:
// https://ihaveabackup.net/article/invalidating-the-opcache-in-php-5-5#comment-19

if (!function_exists('opcache_get_configuration')) {
    die('OPCache is not installed/running');
}

$data = opcache_get_status(); $expired = array();

if (empty($data['scripts'])) {
    die('no cached files');
}

/** Opportunity:
 * taking a hint passed from query argument, of path prefix instead of checking the whole universe of cached scripts
 */

foreach ($data['scripts'] as $file) {
    if (
        !empty($file['timestamp']) 
        && !empty($file['full_path'])
        && (!file_exists($file['full_path']) || (int)$file['timestamp'] < filemtime($file['full_path']))
    ) {
        $expired[]=$file['full_path'];
        opcache_invalidate($file['full_path'], true);
    }
}
/** Opportunity: display invalidated entries */
echo count($expired),' deleted';