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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 |
|---|---|
| 481 | */ |
| 482 | protected function comment_type_dropdown( $comment_type ) { |
| 483 | /** |
| 484 | * Filters the comment types shown in the drop-down menu on the Comments list table. |
| 485 | * |
| 486 | * @since 2.7.0 |
| 487 | * |
| 488 | * @param string[] $comment_types Array of comment type labels keyed by their name. |
| 489 | */ |
| 490 | $comment_types = apply_filters( |
| 491 | 'admin_comment_types_dropdown', |
| 492 | array( |
| 493 | 'comment' => __( 'Comments' ), |
| 494 | 'pings' => __( 'Pings' ), |
| 495 | ) |
| 496 | ); |
| 497 | |
| 498 | if ( $comment_types && is_array( $comment_types ) ) { |
| 499 | printf( '<label class="screen-reader-text" for="filter-by-comment-type">%s</label>', __( 'Filter by comment type' ) ); |