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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
397  * @uses do_action() Calls 'delete_transient_$transient' hook before transient is deleted.
398  * @uses do_action() Calls 'deleted_transient' hook on success.
399  *
400  * @param string $transient Transient name. Expected to not be SQL-escaped.
401  * @return bool true if successful, false otherwise
402  */
403 function delete_transient( $transient ) {
404      global $_wp_using_ext_object_cache;
405
406      do_action( 'delete_transient_' . $transient, $transient );
407
408      if ( $_wp_using_ext_object_cache ) {
409           $result = wp_cache_delete( $transient, 'transient' );
410      } else {
411           $option_timeout = '_transient_timeout_' . $transient;
412           $option = '_transient_' . $transient;
413           $result = delete_option( $option );
414           if ( $result )
415                delete_option( $option_timeout );