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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 |
|---|---|
| 838 | $notoptions = wp_cache_get( 'notoptions', 'site-options' ); // yes, again... we need it to be fresh |
| 839 | if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) { |
| 840 | unset( $notoptions[$option] ); |
| 841 | wp_cache_set( 'notoptions', $notoptions, 'site-options' ); |
| 842 | } |
| 843 | } |
| 844 | |
| 845 | if ( $result ) { |
| 846 | do_action( "add_site_option_{$option}", $option, $value ); |
| 847 | do_action( "add_site_option", $option, $value ); |
| 848 | return true; |
| 849 | } |
| 850 | return false; |
| 851 | } |
| 852 | |
| 853 | /** |
| 854 | * Removes site option by name. |
| 855 | * |
| 856 | * @see delete_option() |