get_meta_keys(): string[]
Returns a list of previously defined keys.
Return
string[] Array of meta key names.
Source
File: wp-admin/includes/post.php.
View all references
function get_meta_keys() {
global $wpdb;
$keys = $wpdb->get_col(
"SELECT meta_key
FROM $wpdb->postmeta
GROUP BY meta_key
ORDER BY meta_key"
);
return $keys;
}
Changelog
| Version | Description |
|---|---|
| 1.2.0 | Introduced. |