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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 |
|---|---|
| 1348 | function the_date( $d = '', $before = '', $after = '', $echo = true ) { |
| 1349 | global $currentday, $previousday; |
| 1350 | $the_date = ''; |
| 1351 | if ( $currentday != $previousday ) { |
| 1352 | $the_date .= $before; |
| 1353 | $the_date .= get_the_date( $d ); |
| 1354 | $the_date .= $after; |
| 1355 | $previousday = $currentday; |
| 1356 | |
| 1357 | $the_date = apply_filters('the_date', $the_date, $d, $before, $after); |
| 1358 | |
| 1359 | if ( $echo ) |
| 1360 | echo $the_date; |
| 1361 | else |
| 1362 | return $the_date; |
| 1363 | } |
| 1364 | |
| 1365 | return null; |
| 1366 | } |