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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 |
|---|---|
| 724 | $the_date = apply_filters('the_date', $the_date, $d, $before, $after); |
| 725 | if ( $echo ) |
| 726 | echo $the_date; |
| 727 | else |
| 728 | return $the_date; |
| 729 | } |
| 730 | |
| 731 | |
| 732 | function the_modified_date($d = '') { |
| 733 | echo apply_filters('the_modified_date', get_the_modified_date($d), $d); |
| 734 | } |
| 735 | |
| 736 | |
| 737 | function get_the_modified_date($d = '') { |
| 738 | if ( '' == $d ) |
| 739 | $the_time = get_post_modified_time(get_option('date_format')); |
| 740 | else |
| 741 | $the_time = get_post_modified_time($d); |
| 742 | return apply_filters('get_the_modified_date', $the_time, $d); |