opcache.optimization_level

INI • INI default value changed in 7.3

opcache: opcache.optimization_level — A bitmask, where each bit enables or disables the appropriate OPcache passes


Default value	`"0x7FFEBFFF"`
Development value	`"0x7FFEBFFF"`
Production value	`"0x7FFEBFFF"`

Modifiability: INI_SYSTEM - The opcache.optimization_level 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

Changed

PHP 7

PHP 8.0

PHP 8.1

PHP 8.2

PHP 8.3

PHP 8.4

PHP 8.5

[opcache]
opcache.optimization_level = "0x7FFEBFFF"

Changes to the `opcache.optimization_level` INI

PHP 7.3

INI directive default value changed from 0x7FFFBFFF to 0x7FFEBFFF

PHP 5.6

INI directive default value changed from 0xFFFFFFFF to 0x7FFFBFFF

PHP 5.5

INI directive added