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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 |
|---|---|
| 627 | function delete_option( $option ) { |
| 628 | global $wpdb; |
| 629 | |
| 630 | wp_protect_special_option( $option ); |
| 631 | |
| 632 | // Get the ID, if no ID then return |
| 633 | $row = $wpdb->get_row( $wpdb->prepare( "SELECT autoload FROM $wpdb->options WHERE option_name = %s", $option ) ); |
| 634 | if ( is_null( $row ) ) |
| 635 | return false; |
| 636 | do_action( 'delete_option', $option ); |
| 637 | $result = $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->options WHERE option_name = %s", $option) ); |
| 638 | if ( ! defined( 'WP_INSTALLING' ) ) { |
| 639 | if ( 'yes' == $row->autoload ) { |
| 640 | $alloptions = wp_load_alloptions(); |
| 641 | if ( is_array( $alloptions ) && isset( $alloptions[$option] ) ) { |
| 642 | unset( $alloptions[$option] ); |
| 643 | wp_cache_set( 'alloptions', $alloptions, 'options' ); |
| 644 | } |
| 645 | } else { |