WordPress开发手册:get_blog_option()

函数原型

get_blog_option( int $id, string $option, mixed $default = false ): mixed

函数描述

是否弃用

未弃用

函数参数

$id
int
Required

A blog ID. Can be null to refer to the current blog.

$option
string
Required

Name of option to retrieve. Expected to not be SQL-escaped.

$default
mixed
Optional

Default value to return if the option does not exist.

Default: false

函数返回值

函数位置

函数源码

function get_blog_option( $id, $option, $default = false ) {
	$id = (int) $id;

	if ( empty( $id ) ) {
		$id = get_current_blog_id();
	}

	if ( get_current_blog_id() == $id ) {
		return get_option( $option, $default );
	}

	switch_to_blog( $id );
	$value = get_option( $option, $default );
	restore_current_blog();

	/**
	 * Filters a blog option value.
	 *
	 * The dynamic portion of the hook name, `$option`, refers to the blog option name.
	 *
	 * @since 3.5.0
	 *
	 * @param string  $value The option value.
	 * @param int     $id    Blog ID.
	 */
	return apply_filters( "blog_option_{$option}", $value, $id );
}

源码链接

WordPress
Github

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