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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 |
|---|---|
| 232 | do_action( 'restrict_manage_comments' ); |
| 233 | submit_button( __( 'Filter' ), 'button', false, false, array( 'id' => 'post-query-submit' ) ); |
| 234 | } |
| 235 | |
| 236 | if ( ( 'spam' == $comment_status || 'trash' == $comment_status ) && current_user_can( 'moderate_comments' ) ) { |
| 237 | wp_nonce_field( 'bulk-destroy', '_destroy_nonce' ); |
| 238 | $title = ( 'spam' == $comment_status ) ? esc_attr__( 'Empty Spam' ) : esc_attr__( 'Empty Trash' ); |
| 239 | submit_button( $title, 'apply', 'delete_all', false ); |
| 240 | } |
| 241 | do_action( 'manage_comments_nav', $comment_status ); |
| 242 | echo '</div>'; |
| 243 | } |
| 244 | |
| 245 | function current_action() { |
| 246 | if ( isset( $_REQUEST['delete_all'] ) || isset( $_REQUEST['delete_all2'] ) ) |
| 247 | return 'delete_all'; |
| 248 | |
| 249 | return parent::current_action(); |
| 250 | } |