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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.
This hook occurs 3 times in this file.
Line | Code |
---|---|
2060 | */ |
2061 | function get_calendar( $initial = true, $echo = true ) { |
2062 | global $wpdb, $m, $monthnum, $year, $wp_locale, $posts; |
2063 |
|
2064 | $key = md5( $m . $monthnum . $year ); |
2065 | $cache = wp_cache_get( 'get_calendar', 'calendar' ); |
2066 |
|
2067 | if ( $cache && is_array( $cache ) && isset( $cache[ $key ] ) ) { |
2068 | /** This filter is documented in wp-includes/general-template.php */ |
2069 | $output = apply_filters( 'get_calendar', $cache[ $key ] ); |
2070 |
|
2071 | if ( $echo ) { |
2072 | echo $output; |
2073 | return; |
2074 | } |
2075 |
|
2076 | return $output; |
2077 | } |
2078 |
|
Line | Code |
2265 |
|
2266 | if ( $echo ) { |
2267 | /** |
2268 | * Filters the HTML calendar output. |
2269 | * |
2270 | * @since 3.0.0 |
2271 | * |
2272 | * @param string $calendar_output HTML output of the calendar. |
2273 | */ |
2274 | echo apply_filters( 'get_calendar', $calendar_output ); |
2275 | return; |
2276 | } |
2277 | /** This filter is documented in wp-includes/general-template.php */ |
2278 | return apply_filters( 'get_calendar', $calendar_output ); |
2279 | } |
2280 |
|
2281 | /** |
2282 | * Purge the cached results of get_calendar. |
2283 | * |
2284 | * @see get_calendar |
2285 | * @since 2.1.0 |
2286 | */ |
2287 | function delete_get_calendar_cache() { |