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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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592 |
|
593 | /** |
594 | * Filters the 'Months' drop-down results. |
595 | * |
596 | * @since 3.7.0 |
597 | * |
598 | * @param object[] $months Array of the months drop-down query results. |
599 | * @param string $post_type The post type. |
600 | */ |
601 | $months = apply_filters( 'months_dropdown_results', $months, $post_type ); |
602 |
|
603 | $month_count = count( $months ); |
604 |
|
605 | if ( ! $month_count || ( 1 == $month_count && 0 == $months[0]->month ) ) { |
606 | return; |
607 | } |
608 |
|
609 | $m = isset( $_GET['m'] ) ? (int) $_GET['m'] : 0; |
610 | ?> |