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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 |
|---|---|
| 680 | if ( $day != $previousday ) { |
| 681 | $the_date .= $before; |
| 682 | if ( $d=='' ) |
| 683 | $the_date .= mysql2date(get_option('date_format'), $post->post_date); |
| 684 | else |
| 685 | $the_date .= mysql2date($d, $post->post_date); |
| 686 | $the_date .= $after; |
| 687 | $previousday = $day; |
| 688 | } |
| 689 | $the_date = apply_filters('the_date', $the_date, $d, $before, $after); |
| 690 | if ( $echo ) |
| 691 | echo $the_date; |
| 692 | else |
| 693 | return $the_date; |
| 694 | } |
| 695 | |
| 696 | |
| 697 | function the_modified_date($d = '') { |
| 698 | echo apply_filters('the_modified_date', get_the_modified_date($d), $d); |