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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 |
|---|---|
| 82 | $query_string = $_SERVER[ 'QUERY_STRING' ]; |
| 83 | else |
| 84 | $query_string = 'page=' . $plugin_page; |
| 85 | wp_redirect( 'tools.php?' . $query_string ); |
| 86 | exit; |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | if ( $page_hook ) { |
| 91 | do_action('load-' . $page_hook); |
| 92 | if (! isset($_GET['noheader'])) |
| 93 | require_once(ABSPATH . 'wp-admin/admin-header.php'); |
| 94 | |
| 95 | do_action($page_hook); |
| 96 | } else { |
| 97 | if ( validate_file($plugin_page) ) { |
| 98 | wp_die(__('Invalid plugin page')); |
| 99 | } |
| 100 | |