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Source View: delete_transient_{$transient}

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: 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.

Source View

Line Code
685  * @uses do_action() Calls 'delete_transient_$transient' hook before transient is deleted.
686  * @uses do_action() Calls 'deleted_transient' hook on success.
687  *
688  * @param string $transient Transient name. Expected to not be SQL-escaped.
689  * @return bool true if successful, false otherwise
690  */
691 function delete_transient( $transient ) {
692      global $_wp_using_ext_object_cache;
693
694      do_action( 'delete_transient_' . $transient, $transient );
695
696      if ( $_wp_using_ext_object_cache ) {
697           $result = wp_cache_delete( $transient, 'transient' );
698      } else {
699           $option_timeout = '_transient_timeout_' . $transient;
700           $option = '_transient_' . $transient;
701           $result = delete_option( $option );
702           if ( $result )
703                delete_option( $option_timeout );