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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 |
|---|---|
| 579 | // This option exists now |
| 580 | $notoptions = wp_cache_get( 'notoptions', 'options' ); // yes, again... we need it to be fresh |
| 581 | if ( is_array( $notoptions ) && isset( $notoptions[$name] ) ) { |
| 582 | unset( $notoptions[$name] ); |
| 583 | wp_cache_set( 'notoptions', $notoptions, 'options' ); |
| 584 | } |
| 585 | |
| 586 | $wpdb->query( $wpdb->prepare( "INSERT INTO $wpdb->options (option_name, option_value, autoload) VALUES (%s, %s, %s)", $name, $value, $autoload ) ); |
| 587 | |
| 588 | do_action( "add_option_{$name}", $name, $value ); |
| 589 | return; |
| 590 | } |
| 591 | |
| 592 | /** |
| 593 | * Removes option by name and prevents removal of protected WordPress options. |
| 594 | * |
| 595 | * @package WordPress |
| 596 | * @subpackage Option |
| 597 | * @since unknown |