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get_post_meta › WordPress Function

Since1.5.0
已弃用n/a
get_post_meta ( $post_id, $key = '', $single = false )
参数: (3)
  • (int) $post_id Post ID.
    Required: Yes
  • (string) $key Optional. The meta key to retrieve. By default, returns data for all keys. Default empty.
    Required: No
    默认: (empty)
  • (bool) $single Optional. Whether to return a single value. This parameter has no effect if `$key` is not specified. Default false.
    Required: No
    默认: false
返回:
  • (mixed) An array of values if `$single` is false. The value of the meta field if `$single` is true. False for an invalid `$post_id` (non-numeric, zero, or negative value). An empty string if a valid but non-existing post ID is passed.
定义在:
文档:

Retrieves a post meta field for the given post ID.



源码

function get_post_meta( $post_id, $key = '', $single = false ) {
	return get_metadata( 'post', $post_id, $key, $single );
}