Description:
------------
Setup: apache + fpm
2 Files: test.php and require.php placed in the Document Root

If a file that was cached in the opcache is required after disabling the opcache for the current request, php will produce a fatal error.

Using the code snippets below the bug can be triggered by calling the URI /test.php followed by calling the URI /test.php?opcache

PHP 7.2.17 does not show this behaviour.


Test script:
---------------
// test.php
ini_set('display_errors', 'on');

if (array_key_exists('opcache', $_GET)) {
        ini_set('opcache.enable', 0);
}

require_once($_SERVER['DOCUMENT_ROOT'] . '/require.php');


// require.php
echo('success');

Expected result:
----------------
output should always be:

success

Actual result:
--------------
when the bug is actually triggered the result is:

Fatal error: require_once(): Failed opening required '[...]/require.php' (include_path='.:/usr/share/php') in [...]/test.php on line 8