If you want to hook into WordPress when an options page is saved and access the values that were entered, you can use update_option_{$option}.
Let’s say for my options page, I added the setting like this:
register_setting( km_my_cool_options, km_my_cool_options );
I could then hook into when the options page is saved and access the old & new values like this:
| <?php | |
| /** | |
| * Hook into options page after save. | |
| */ | |
| public function km_hook_into_options_page_after_save( $old_value, $new_value ) { | |
| if ( $old_value['some_option'] != $new_value['some_option'] ) { | |
| // This value has been changed. Insert code here. | |
| } | |
| } | |
| add_action( 'update_option_km_my_cool_options', 'km_hook_into_options_page_after_save', 10, 2 ); |
Written by Kellen Mace, who lives in Rochester Hills, MI and builds cool stuff on the web. About Kellen // Follow him on Twitter →