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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 |
|---|---|
| 1383 | } |
| 1384 | |
| 1385 | /** |
| 1386 | * Filter the wp_dropdown_users() HTML output. |
| 1387 | * |
| 1388 | * @since 2.3.0 |
| 1389 | * |
| 1390 | * @param string $output HTML output generated by wp_dropdown_users(). |
| 1391 | */ |
| 1392 | $html = apply_filters( 'wp_dropdown_users', $output ); |
| 1393 | |
| 1394 | if ( $r['echo'] ) { |
| 1395 | echo $html; |
| 1396 | } |
| 1397 | return $html; |
| 1398 | } |
| 1399 | |
| 1400 | /** |
| 1401 | * Sanitize user field based on context. |