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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 |
|---|---|
| 1377 | function the_date( $d = '', $before = '', $after = '', $echo = true ) { |
| 1378 | global $currentday, $previousday; |
| 1379 | $the_date = ''; |
| 1380 | if ( $currentday != $previousday ) { |
| 1381 | $the_date .= $before; |
| 1382 | $the_date .= get_the_date( $d ); |
| 1383 | $the_date .= $after; |
| 1384 | $previousday = $currentday; |
| 1385 | |
| 1386 | $the_date = apply_filters('the_date', $the_date, $d, $before, $after); |
| 1387 | |
| 1388 | if ( $echo ) |
| 1389 | echo $the_date; |
| 1390 | else |
| 1391 | return $the_date; |
| 1392 | } |
| 1393 | |
| 1394 | return null; |
| 1395 | } |