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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 |
|---|---|
| 199 | do_action( 'add_meta_boxes', 'comment', $comment ); |
| 200 | |
| 201 | /** |
| 202 | * Fires when comment-specific meta boxes are added. |
| 203 | * |
| 204 | * @since 3.0.0 |
| 205 | * |
| 206 | * @param WP_Comment $comment Comment object. |
| 207 | */ |
| 208 | do_action( 'add_meta_boxes_comment', $comment ); |
| 209 | |
| 210 | do_meta_boxes( null, 'normal', $comment ); |
| 211 | |
| 212 | $referer = wp_get_referer(); |
| 213 | ?> |
| 214 | </div> |
| 215 | |
| 216 | <input type="hidden" name="c" value="<?php echo esc_attr( $comment->comment_ID ); ?>" /> |
| 217 | <input type="hidden" name="p" value="<?php echo esc_attr( $comment->comment_post_ID ); ?>" /> |