get_metadata
get_metadata ( $meta_type, $object_id, $meta_key = '', $single = false )
Parameters:- (string) meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user', or any other object type with an associated meta table.
- (int) object_id ID of the object metadata is for.
- (string) meta_key Optional. Metadata key. If not specified, retrieve all metadata for the specified object. Default empty string.
- (bool) single Optional. If true, return only the first value of the specified `$meta_key`. This parameter has no effect if `$meta_key` is not specified. Default false.
See:Returns:- (mixed) An array of values if `$single` is false. The value of the meta field if `$single` is true. False for an invalid `$object_id` (non-numeric, zero, or negative value), or if `$meta_type` is not specified. An empty string if a valid but non-existing object ID is passed.
Defined at: - Introduced in WordPress: 2.9.0
- Deprecated in WordPress: —
Description
Retrieves the value of a metadata field for the specified object type and ID.If the meta field exists, a single value is returned if `$single` is true,
or an array of values if it's false.
If the meta field does not exist, the result depends on get_metadata_default().
By default, an empty string is returned if `$single` is true, or an empty array
if it's false.