WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 2518 | } |
| 2519 | |
| 2520 | /** |
| 2521 | * {@internal Missing Short Description}} |
| 2522 | * |
| 2523 | * @since unknown |
| 2524 | */ |
| 2525 | function meta_form() { |
| 2526 | global $wpdb; |
| 2527 | $limit = (int) apply_filters( 'postmeta_form_limit', 30 ); |
| 2528 | $keys = $wpdb->get_col( " |
| 2529 | SELECT meta_key |
| 2530 | FROM $wpdb->postmeta |
| 2531 | GROUP BY meta_key |
| 2532 | HAVING meta_key NOT LIKE '\_%' |
| 2533 | ORDER BY LOWER(meta_key) |
| 2534 | LIMIT $limit" ); |
| 2535 | if ( $keys ) |
| 2536 | natcasesort($keys); |