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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 |
---|---|
252 | wp_cache_set( 'alloptions', $alloptions, 'options' ); |
253 | } else { |
254 | wp_cache_set( $option, $_newvalue, 'options' ); |
255 | } |
256 | } |
257 |
|
258 | $result = $wpdb->update( $wpdb->options, array( 'option_value' => $newvalue ), array( 'option_name' => $option ) ); |
259 |
|
260 | if ( $result ) { |
261 | do_action( "update_option_{$option}", $oldvalue, $_newvalue ); |
262 | do_action( 'updated_option', $option, $oldvalue, $_newvalue ); |
263 | return true; |
264 | } |
265 | return false; |
266 | } |
267 |
|
268 | /** |
269 | * Add a new option. |
270 | * |