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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 |
|---|---|
| 40 | // Handle plugin admin pages. |
| 41 | if (isset($plugin_page)) { |
| 42 | $page_hook = get_plugin_page_hook($plugin_page, $pagenow); |
| 43 | |
| 44 | if ( $page_hook ) { |
| 45 | do_action('load-' . $page_hook); |
| 46 | if (! isset($_GET['noheader'])) |
| 47 | require_once(ABSPATH . 'wp-admin/admin-header.php'); |
| 48 | |
| 49 | do_action($page_hook); |
| 50 | } else { |
| 51 | if ( validate_file($plugin_page) ) { |
| 52 | wp_die(__('Invalid plugin page')); |
| 53 | } |
| 54 | |
| 55 | if (! file_exists(ABSPATH . PLUGINDIR . "/$plugin_page")) |
| 56 | wp_die(sprintf(__('Cannot load %s.'), htmlentities($plugin_page))); |
| 57 | |
| 58 | do_action('load-' . $plugin_page); |