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get_meta_keys ›

Since1.2.0
Deprecatedn/a
get_meta_keys ( No parameters )
Returns:
  • (mixed)
Defined at:
Codex:

Get a list of previously defined keys.



Source

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;
}