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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 |
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744 | * @param string $option Name of option to retrieve. Expected to not be SQL-escaped. |
745 | * @param mixed $default Optional value to return if option doesn't exist. Default false. |
746 | * @param bool $use_cache Whether to use cache. Multisite only. Default true. |
747 | * @return mixed Value set for the option. |
748 | */ |
749 | function get_site_option( $option, $default = false, $use_cache = true ) { |
750 | global $wpdb; |
751 |
|
752 | // Allow plugins to short-circuit site options. |
753 | $pre = apply_filters( 'pre_site_option_' . $option, false ); |
754 | if ( false !== $pre ) |
755 | return $pre; |
756 |
|
757 | if ( ! is_multisite() ) { |
758 | $default = apply_filters( 'default_site_option_' . $option, $default ); |
759 | $value = get_option($option, $default); |
760 | } else { |
761 | $cache_key = "{$wpdb->siteid}:$option"; |
762 | if ( $use_cache ) |