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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 |
|---|---|
| 941 | * @uses do_action() Calls 'delete_site_transient_$transient' hook before transient is deleted. |
| 942 | * @uses do_action() Calls 'deleted_site_transient' hook on success. |
| 943 | * |
| 944 | * @param string $transient Transient name. Expected to not be SQL-escaped. |
| 945 | * @return bool True if successful, false otherwise |
| 946 | */ |
| 947 | function delete_site_transient( $transient ) { |
| 948 | global $_wp_using_ext_object_cache; |
| 949 | |
| 950 | do_action( 'delete_site_transient_' . $transient, $transient ); |
| 951 | if ( $_wp_using_ext_object_cache ) { |
| 952 | $result = wp_cache_delete( $transient, 'site-transient' ); |
| 953 | } else { |
| 954 | $option_timeout = '_site_transient_timeout_' . $transient; |
| 955 | $option = '_site_transient_' . $transient; |
| 956 | $result = delete_site_option( $option ); |
| 957 | if ( $result ) |
| 958 | delete_site_option( $option_timeout ); |
| 959 | } |