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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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629 |
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630 | /** |
631 | * Filters the 'Months' drop-down results. |
632 | * |
633 | * @since 3.7.0 |
634 | * |
635 | * @param object[] $months Array of the months drop-down query results. |
636 | * @param string $post_type The post type. |
637 | */ |
638 | $months = apply_filters( 'months_dropdown_results', $months, $post_type ); |
639 |
|
640 | $month_count = count( $months ); |
641 |
|
642 | if ( ! $month_count || ( 1 == $month_count && 0 == $months[0]->month ) ) { |
643 | return; |
644 | } |
645 |
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646 | $m = isset( $_GET['m'] ) ? (int) $_GET['m'] : 0; |
647 | ?> |