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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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706 |
|
707 | /** |
708 | * Filters the 'Months' drop-down results. |
709 | * |
710 | * @since 3.7.0 |
711 | * |
712 | * @param object[] $months Array of the months drop-down query results. |
713 | * @param string $post_type The post type. |
714 | */ |
715 | $months = apply_filters( 'months_dropdown_results', $months, $post_type ); |
716 |
|
717 | $month_count = count( $months ); |
718 |
|
719 | if ( ! $month_count || ( 1 == $month_count && 0 == $months[0]->month ) ) { |
720 | return; |
721 | } |
722 |
|
723 | $m = isset( $_GET['m'] ) ? (int) $_GET['m'] : 0; |
724 | ?> |