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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 |
|---|---|
| 396 | function rss_enclosure() { |
| 397 | global $post; |
| 398 | if ( !empty($post->post_password) && (!isset($_COOKIE['wp-postpass_'.COOKIEHASH]) || $_COOKIE['wp-postpass_'.COOKIEHASH] != $post->post_password) ) |
| 399 | return; |
| 400 | |
| 401 | foreach (get_post_custom() as $key => $val) { |
| 402 | if ($key == 'enclosure') { |
| 403 | foreach ((array)$val as $enc) { |
| 404 | $enclosure = split("\n", $enc); |
| 405 | echo apply_filters('rss_enclosure', '<enclosure url="' . trim(htmlspecialchars($enclosure[0])) . '" length="' . trim($enclosure[1]) . '" type="' . trim($enclosure[2]) . '" />' . "\n"); |
| 406 | } |
| 407 | } |
| 408 | } |
| 409 | } |
| 410 | |
| 411 | /** |
| 412 | * Display the atom enclosure for the current post. |
| 413 | * |
| 414 | * Uses the global $post to check whether the post requires a password and if |