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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 |
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712 |
|
713 | /** |
714 | * Filters the 'Months' drop-down results. |
715 | * |
716 | * @since 3.7.0 |
717 | * |
718 | * @param object[] $months Array of the months drop-down query results. |
719 | * @param string $post_type The post type. |
720 | */ |
721 | $months = apply_filters( 'months_dropdown_results', $months, $post_type ); |
722 |
|
723 | $month_count = count( $months ); |
724 |
|
725 | if ( ! $month_count || ( 1 == $month_count && 0 == $months[0]->month ) ) { |
726 | return; |
727 | } |
728 |
|
729 | $m = isset( $_GET['m'] ) ? (int) $_GET['m'] : 0; |
730 | ?> |