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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 |
|---|---|
| 251 | echo "\t<option value='" . esc_attr( $type ) . "'" . selected( $comment_type, $type, false ) . ">$label</option>\n"; |
| 252 | ?> |
| 253 | </select> |
| 254 | <?php |
| 255 | /** |
| 256 | * Fires just before the Filter submit button for comment types. |
| 257 | * |
| 258 | * @since 3.5.0 |
| 259 | */ |
| 260 | do_action( 'restrict_manage_comments' ); |
| 261 | submit_button( __( 'Filter' ), 'button', false, false, array( 'id' => 'post-query-submit' ) ); |
| 262 | } |
| 263 | |
| 264 | if ( ( 'spam' == $comment_status || 'trash' == $comment_status ) && current_user_can( 'moderate_comments' ) ) { |
| 265 | wp_nonce_field( 'bulk-destroy', '_destroy_nonce' ); |
| 266 | $title = ( 'spam' == $comment_status ) ? esc_attr__( 'Empty Spam' ) : esc_attr__( 'Empty Trash' ); |
| 267 | submit_button( $title, 'apply', 'delete_all', false ); |
| 268 | } |
| 269 | /** |