opcache.protect_memory

INIAdded in PHP 5.5

opcache: opcache.protect_memory — Protect the shared memory from unexpected writing during script execution. Useful for internal debugging only.

Default value 0
Development value 0
Production value 0

Modifiability: INI_SYSTEM - The opcache.protect_memory INI directive directive is a system-directive, and can only be configured in php.ini files or Server-API configuration files such as Apache httpd.conf. It cannot be configured with ini_set calls.

PHP 5.3-5.4
PHP 5.5
Added
PHP 5.6
PHP 7
PHP 8.0
PHP 8.1
PHP 8.2
PHP 8.3
PHP 8.4
PHP 8.5
[opcache]
opcache.protect_memory = 0

Changes to the opcache.protect_memory INI

PHP 5.5

  • INI directive added

opcache.protect_memory INI Availability

PHP VersionAvailability
PHP 8.5Future Release Yes
PHP 8.4Upcoming Release Yes
PHP 8.3Supported (Latest) Yes
PHP 8.2Supported 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