get_meta_keys()
Returns a list of previously defined keys.
Return
(string[]) Array of meta key names.
Source
File: wp-admin/includes/post.php
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; }
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Changelog
Version | Description |
---|---|
1.2.0 | Introduced. |