Caution: The documentation you are viewing is
for an older version of Zend Framework.
You can find the documentation of the current version at
docs.zendframework.com
APC Progress Handler — Zend Framework 2 2.2.10 documentation
The Zend\ProgressBar\Upload\ApcProgress handler uses the APC extension for tracking upload progress.
Note
The APC extension is required.
This handler is best used with the FormFileApcProgress view helper, to provide a hidden element with the upload progress identifier.