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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.
| Line | Code |
|---|---|
| 237 | $notoptions = wp_cache_get( 'notoptions', 'options' ); |
| 238 | if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) { |
| 239 | unset( $notoptions[$option] ); |
| 240 | wp_cache_set( 'notoptions', $notoptions, 'options' ); |
| 241 | } |
| 242 | |
| 243 | $_newvalue = $newvalue; |
| 244 | $newvalue = maybe_serialize( $newvalue ); |
| 245 | |
| 246 | do_action( 'update_option', $option, $oldvalue, $_newvalue ); |
| 247 | if ( ! defined( 'WP_INSTALLING' ) ) { |
| 248 | $alloptions = wp_load_alloptions(); |
| 249 | if ( isset( $alloptions[$option] ) ) { |
| 250 | $alloptions[$option] = $newvalue; |
| 251 | wp_cache_set( 'alloptions', $alloptions, 'options' ); |
| 252 | } else { |
| 253 | wp_cache_set( $option, $newvalue, 'options' ); |
| 254 | } |
| 255 | } |