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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 |
|---|---|
| 142 | set_current_screen(); |
| 143 | |
| 144 | // Handle plugin admin pages. |
| 145 | if ( isset($plugin_page) ) { |
| 146 | if ( $page_hook ) { |
| 147 | do_action('load-' . $page_hook); |
| 148 | if (! isset($_GET['noheader'])) |
| 149 | require_once(ABSPATH . 'wp-admin/admin-header.php'); |
| 150 | |
| 151 | do_action($page_hook); |
| 152 | } else { |
| 153 | if ( validate_file($plugin_page) ) |
| 154 | wp_die(__('Invalid plugin page')); |
| 155 | |
| 156 | if ( !( file_exists(WP_PLUGIN_DIR . "/$plugin_page") && is_file(WP_PLUGIN_DIR . "/$plugin_page") ) && !( file_exists(WPMU_PLUGIN_DIR . "/$plugin_page") && is_file(WPMU_PLUGIN_DIR . "/$plugin_page") ) ) |
| 157 | wp_die(sprintf(__('Cannot load %s.'), htmlentities($plugin_page))); |
| 158 | |
| 159 | do_action('load-' . $plugin_page); |
| 160 | |