wp_is_ini_value_changeable()

确定PHP ini值是否可在运行时更改。

原型

wp_is_ini_value_changeable( string $setting )

参数

$setting (string) (Required) 要检查的ini设置的名称。

返回值

(bool)  如果值在运行时可更改，则为True。否则就错了。

源文件

路径：wp-includes/load.php

<?php
...
function wp_is_ini_value_changeable( $setting ) {
	static $ini_all;
	if ( ! isset( $ini_all ) ) {
		$ini_all = false;
		// Sometimes `ini_get_all()` is disabled via the `disable_functions` option for "security purposes".
		if ( function_exists( 'ini_get_all' ) ) {
			$ini_all = ini_get_all();
		}
 	}
	// Bit operator to workaround https://bugs.php.net/bug.php?id=44936 which changes access level to 63 in PHP 5.2.6 - 5.2.17.
	if ( isset( $ini_all[ $setting ]['access'] ) && ( INI_ALL === ( $ini_all[ $setting ]['access'] & 7 ) || INI_USER === ( $ini_all[ $setting ]['access'] & 7 ) ) ) {
		return true;
	}
	// If we were unable to retrieve the details, fail gracefully to assume it's changeable.
	if ( ! is_array( $ini_all ) ) {
		return true;
	}
	return false;
}
...
?>

其他

英文文档：https://developer.wordpress.org/reference/functions/wp_is_ini_value_changeable/