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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 |
|---|---|
| 1552 | */ |
| 1553 | function get_calendar($initial = true, $echo = true) { |
| 1554 | global $wpdb, $m, $monthnum, $year, $wp_locale, $posts; |
| 1555 | |
| 1556 | $key = md5( $m . $monthnum . $year ); |
| 1557 | if ( $cache = wp_cache_get( 'get_calendar', 'calendar' ) ) { |
| 1558 | if ( is_array($cache) && isset( $cache[ $key ] ) ) { |
| 1559 | if ( $echo ) { |
| 1560 | /** This filter is documented in wp-includes/general-template.php */ |
| 1561 | echo apply_filters( 'get_calendar', $cache[$key] ); |
| 1562 | return; |
| 1563 | } else { |
| 1564 | /** This filter is documented in wp-includes/general-template.php */ |
| 1565 | return apply_filters( 'get_calendar', $cache[$key] ); |
| 1566 | } |
| 1567 | } |
| 1568 | } |
| 1569 | |
| 1570 | if ( !is_array($cache) ) |
| 1571 | $cache = array(); |
| 1572 | |
| 1573 | // Quick check. If we have no posts at all, abort! |
| 1574 | if ( !$posts ) { |
| Line | Code |
| 1747 | |
| 1748 | if ( $echo ) { |
| 1749 | /** |
| 1750 | * Filter the HTML calendar output. |
| 1751 | * |
| 1752 | * @since 3.0.0 |
| 1753 | * |
| 1754 | * @param string $calendar_output HTML output of the calendar. |
| 1755 | */ |
| 1756 | echo apply_filters( 'get_calendar', $calendar_output ); |
| 1757 | } else { |
| 1758 | /** This filter is documented in wp-includes/general-template.php */ |
| 1759 | return apply_filters( 'get_calendar', $calendar_output ); |
| 1760 | } |
| 1761 | |
| 1762 | } |
| 1763 | |
| 1764 | /** |
| 1765 | * Purge the cached results of get_calendar. |
| 1766 | * |
| 1767 | * @see get_calendar |
| 1768 | * @since 2.1.0 |