opcache.file_update_protection

INI • Added in PHP 5.5

opcache: opcache.file_update_protection — Prevents caching files that are less than this number of seconds old. It protects from caching of incompletely updated files. In case all file updates on your site are atomic, you may increase performance by setting it to "0".

Default value 2
Development value 2
Production value 2

Modifiability: INI_ALL - The opcache.file_update_protection INI directive can be configured anywhere, including php.ini files, ini_set calls, Apache .htaccess files, per-directory .ini files, etc.

PHP 5.3-5.4
PHP 5.5
Added
PHP 5.6
PHP 7
PHP 8.0
PHP 8.1-8.2
PHP 8.3-8.4
PHP 8.5
PHP 8.6 
[opcache]
opcache.file_update_protection = 2

Changes to the opcache.file_update_protection INI

PHP 5.5

  • INI directive added

opcache.file_update_protection INI Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Supported Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Security-Fixes Only Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported No
PHP 5.3Unsupported No