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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 |
|---|---|
| 560 | |
| 561 | /** |
| 562 | * Filters whether to remove the 'Months' drop-down from the post list table. |
| 563 | * |
| 564 | * @since 4.2.0 |
| 565 | * |
| 566 | * @param bool $disable Whether to disable the drop-down. Default false. |
| 567 | * @param string $post_type The post type. |
| 568 | */ |
| 569 | if ( apply_filters( 'disable_months_dropdown', false, $post_type ) ) { |
| 570 | return; |
| 571 | } |
| 572 | |
| 573 | $extra_checks = "AND post_status != 'auto-draft'"; |
| 574 | if ( ! isset( $_GET['post_status'] ) || 'trash' !== $_GET['post_status'] ) { |
| 575 | $extra_checks .= " AND post_status != 'trash'"; |
| 576 | } elseif ( isset( $_GET['post_status'] ) ) { |
| 577 | $extra_checks = $wpdb->prepare( ' AND post_status = %s', $_GET['post_status'] ); |
| 578 | } |