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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 |
|---|---|
| 2437 | * |
| 2438 | * @since 2.1.0 |
| 2439 | * |
| 2440 | * @param string $the_modified_date The last modified date. |
| 2441 | * @param string $format PHP date format. Defaults to 'date_format' option |
| 2442 | * if not specified. |
| 2443 | * @param string $before HTML output before the date. |
| 2444 | * @param string $after HTML output after the date. |
| 2445 | */ |
| 2446 | $the_modified_date = apply_filters( 'the_modified_date', $the_modified_date, $format, $before, $after ); |
| 2447 | |
| 2448 | if ( $echo ) { |
| 2449 | echo $the_modified_date; |
| 2450 | } else { |
| 2451 | return $the_modified_date; |
| 2452 | } |
| 2453 | |
| 2454 | } |
| 2455 | |