get_{$meta_type}_metadata

最后更新于：2021-11-27 00:16:29

apply_filters( “get_{$meta_type}_metadata”, mixed $value, int $object_id, string $meta_key, bool $single, string $meta_type )

Short-circuits the return value of a meta field.

参数

$value

(mixed)
The value to return, either a single metadata value or an array of values depending on the value of $single. Default null.

$object_id

(int)
ID of the object metadata is for.

$meta_key

(string)
Metadata key.

$single

(bool)
Whether to return only the first value of the specified $meta_key.

$meta_type

(string)
Type of object metadata is for. Accepts ‘post’, ‘comment’, ‘term’, ‘user’, or any other object type with an associated meta table.

源文件

文件: gc-includes/meta.php

View on Trac

add_action( 'init', 'gcdocs_init' );

function gcdocs_init() {
	add_filter( 'get_user_metadata', 'gcdocs_get_foo', 10, 3 );
}

function gcdocs_get_foo( $check, $object_id, $meta_key ) {
	if ( 'foo' === $meta_key ) {
		// Always return an array with your return value.
		return array( 'bar' );
	}

	return $check; // Go on with the normal execution in meta.php
}