How to debug and log PHP OPcache issues

OPCache can be temporarily disabled by adding the following code to the script−

ini_set('opcache.enable', 0);

This can be used to determine if OPCache is the cause of the script failure. Therefore, users do not have to check every extension and turn them on/off to see which extension is causing the problem.

Find the log showing which file and the reason behind the script failed (when OPCache is enabled).

This is a viable option if the user has more information about the application they are trying to debug.

ini_set('display_errors', 1); error_reporting(~0);

If the above two solutions do not work, users can use Xdebug to debug their applications. It has a remote debugger that allows users to view the data structures used by the application and helps interactively step through the code as well as debug it.

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