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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 |
|---|---|
| 254 | <?php endif; ?> |
| 255 | <option value="delete"><?php _e('Delete'); ?></option> |
| 256 | </select> |
| 257 | <input type="submit" name="doaction" id="doaction" value="<?php esc_attr_e('Apply'); ?>" class="button-secondary apply" /> |
| 258 | <?php wp_nonce_field('bulk-comments'); ?> |
| 259 | |
| 260 | <select name="comment_type"> |
| 261 | <option value="all"><?php _e('Show all comment types'); ?></option> |
| 262 | <?php |
| 263 | $comment_types = apply_filters( 'admin_comment_types_dropdown', array( |
| 264 | 'comment' => __('Comments'), |
| 265 | 'pings' => __('Pings'), |
| 266 | ) ); |
| 267 | |
| 268 | foreach ( $comment_types as $type => $label ) { |
| 269 | echo " <option value='" . esc_attr($type) . "'"; |
| 270 | selected( $comment_type, $type ); |
| 271 | echo ">$label</option>\n"; |
| 272 | } |