WP hooks navigation: Home/browse • Actions index • Filters index
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.
| Line | Code |
|---|---|
| 2048 | * @param mixed $pre_option The value to return instead of the network option value. This differs |
| 2049 | * from `$default_value`, which is used as the fallback value in the event |
| 2050 | * the option doesn't exist elsewhere in get_network_option(). |
| 2051 | * Default false (to skip past the short-circuit). |
| 2052 | * @param string $option Name of the option. |
| 2053 | * @param int $network_id ID of the network. |
| 2054 | * @param mixed $default_value The fallback value to return if the option does not exist. |
| 2055 | * Default false. |
| 2056 | */ |
| 2057 | $pre = apply_filters( 'pre_site_option', $pre, $option, $network_id, $default_value ); |
| 2058 | |
| 2059 | if ( false !== $pre ) { |
| 2060 | return $pre; |
| 2061 | } |
| 2062 | |
| 2063 | // Prevent non-existent options from triggering multiple queries. |
| 2064 | $notoptions_key = "$network_id:notoptions"; |
| 2065 | $notoptions = wp_cache_get( $notoptions_key, 'site-options' ); |
| 2066 | |