get_post_custom_keys() WordPress Function
The get_post_custom_keys() function is used to get all the custom keys for a post. This is useful for getting all the data associated with a post, such as custom fields.
get_post_custom_keys( int $post_id ) #
Retrieve meta field names for a post.
Description
If there are no meta fields, then nothing (null) will be returned.
Parameters
- $post_id
(int)(Optional) Post ID. Default is the ID of the global
$post.
Return
(array|void) Array of the keys, if retrieved.
Source
File: wp-includes/post.php
function get_post_custom_keys( $post_id = 0 ) {
$custom = get_post_custom( $post_id );
if ( ! is_array( $custom ) ) {
return;
}
$keys = array_keys( $custom );
if ( $keys ) {
return $keys;
}
}
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Changelog
| Version | Description |
|---|---|
| 1.2.0 | Introduced. |