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posix_sysconf

(PHP 8 >= 8.3.0)

posix_sysconfReturns system runtime information

说明

posix_sysconf(int $conf_id): int

Returns system runtime information.

参数

conf_id

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

返回值

Returns the numeric value related to conf_id

示例

示例 #1 posix_sysconf() example

Returns the number of active cpus.

<?php
echo posix_sysconf(POSIX_SC_NPROCESSORS_ONLN);
?>

以上示例会输出:

2
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