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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 |
|---|---|
| 117 | |
| 118 | <div id="postbox-container-1" class="postbox-container"> |
| 119 | <?php |
| 120 | |
| 121 | /** |
| 122 | * Fires before the Save meta box in the sidebar. |
| 123 | * |
| 124 | * @since 2.5.0 |
| 125 | */ |
| 126 | do_action( 'submitlink_box' ); |
| 127 | $side_meta_boxes = do_meta_boxes( 'link', 'side', $link ); |
| 128 | |
| 129 | ?> |
| 130 | </div> |
| 131 | <div id="postbox-container-2" class="postbox-container"> |
| 132 | <?php |
| 133 | |
| 134 | do_meta_boxes(null, 'normal', $link); |
| 135 | |