posix_sysconf

Function • Added in PHP 8.3

Returns system runtime information.

PHP 5

PHP 7

PHP 8.0-8.1

PHP 8.2

Added

PHP 8.4

PHP 8.5

PHP 8.6

`posix_sysconf` Function synopsis

posix_sysconf(int $conf_id): int

Parameters

`$conf_id`

Typeint

Identifier of the variable with the following constants POSIX_SC_ARG_MAX, POSIX_SC_PAGESIZE, POSIX_SC_NPROCESSORS_CONF, POSIX_SC_NPROCESSORS_ONLN, POSIX_SC_CHILD_MAX, POSIX_SC_CLK_TCK

Return value

Typeint

Returns the numeric value related to $conf_id

Changes to the `posix_sysconf` Function

PHP 8.3

Function added

`posix_sysconf` Function Availability

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