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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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.
This hook occurs 4 times in this file.
| Line | Code |
|---|---|
| 1611 | */ |
| 1612 | function get_calendar($initial = true, $echo = true) { |
| 1613 | global $wpdb, $m, $monthnum, $year, $wp_locale, $posts; |
| 1614 | |
| 1615 | $key = md5( $m . $monthnum . $year ); |
| 1616 | if ( $cache = wp_cache_get( 'get_calendar', 'calendar' ) ) { |
| 1617 | if ( is_array($cache) && isset( $cache[ $key ] ) ) { |
| 1618 | if ( $echo ) { |
| 1619 | /** This filter is documented in wp-includes/general-template.php */ |
| 1620 | echo apply_filters( 'get_calendar', $cache[$key] ); |
| 1621 | return; |
| 1622 | } else { |
| 1623 | /** This filter is documented in wp-includes/general-template.php */ |
| 1624 | return apply_filters( 'get_calendar', $cache[$key] ); |
| 1625 | } |
| 1626 | } |
| 1627 | } |
| 1628 | |
| 1629 | if ( !is_array($cache) ) |
| 1630 | $cache = array(); |
| 1631 | |
| 1632 | // Quick check. If we have no posts at all, abort! |
| 1633 | if ( !$posts ) { |
| Line | Code |
| 1806 | |
| 1807 | if ( $echo ) { |
| 1808 | /** |
| 1809 | * Filter the HTML calendar output. |
| 1810 | * |
| 1811 | * @since 3.0.0 |
| 1812 | * |
| 1813 | * @param string $calendar_output HTML output of the calendar. |
| 1814 | */ |
| 1815 | echo apply_filters( 'get_calendar', $calendar_output ); |
| 1816 | } else { |
| 1817 | /** This filter is documented in wp-includes/general-template.php */ |
| 1818 | return apply_filters( 'get_calendar', $calendar_output ); |
| 1819 | } |
| 1820 | |
| 1821 | } |
| 1822 | |
| 1823 | /** |
| 1824 | * Purge the cached results of get_calendar. |
| 1825 | * |
| 1826 | * @see get_calendar |
| 1827 | * @since 2.1.0 |