apc_delete（）无法在后台脚本中工作

I have a shell background convertor on my video website and I can't seem to get APC to delete a key as a file is uploaded and its visibility is updated. The script is structured like so:

if(file_exists($output_file))
{ 
   $conn->query("UPDATE `foo` SET `bar` = 1 WHERE `id` = ".$id." LIMIT 1"); 
   apc_delete('feed:'.$id); 
}

Everything works fine except for the APC and this is the only script on the site that has had this problem. I'm stumped.

You can't access the APC shared memory segment inside of apache from a process external to apache. If you enable APC in CLI mode, CLI scripts simply receive their own shared memory segments.

You can work around this by:

1. Using memcached instead of APC, which is accessible from anywhere, not just a single apache instance
2. Exposing a URL (e.g. http://example.com/delete.php?id=5) which you can call from your CLI script. The URL will be processed by a script inside of apache, and as such, have access to APC.