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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 |
|---|---|
| 253 | * |
| 254 | * By default, custom post types use the messages for the 'post' post type. |
| 255 | * |
| 256 | * @since 3.7.0 |
| 257 | * |
| 258 | * @param array $bulk_messages Arrays of messages, each keyed by the corresponding post type. Messages are |
| 259 | * keyed with 'updated', 'locked', 'deleted', 'trashed', and 'untrashed'. |
| 260 | * @param array $bulk_counts Array of item counts for each message, used to build internationalized strings. |
| 261 | */ |
| 262 | $bulk_messages = apply_filters( 'bulk_post_updated_messages', $bulk_messages, $bulk_counts ); |
| 263 | $bulk_counts = array_filter( $bulk_counts ); |
| 264 | |
| 265 | require_once( ABSPATH . 'wp-admin/admin-header.php' ); |
| 266 | ?> |
| 267 | <div class="wrap"> |
| 268 | <h2><?php |
| 269 | echo esc_html( $post_type_object->labels->name ); |
| 270 | if ( current_user_can( $post_type_object->cap->create_posts ) ) |
| 271 | echo ' <a href="' . esc_url( admin_url( $post_new_file ) ) . '" class="add-new-h2">' . esc_html( $post_type_object->labels->add_new ) . '</a>'; |