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
621      /**
622       * Fires immediately before a specific transient is deleted.
623       *
624       * The dynamic portion of the hook name, `$transient`, refers to the transient name.
625       *
626       * @since 3.0.0
627       *
628       * @param string $transient Transient name.
629       */
630      do_action( "delete_transient_{$transient}", $transient );
631
632      if ( wp_using_ext_object_cache() ) {
633           $result = wp_cache_delete( $transient, 'transient' );
634      } else {
635           $option_timeout = '_transient_timeout_' . $transient;
636           $option         = '_transient_' . $transient;
637           $result         = delete_option( $option );
638           if ( $result ) {
639                delete_option( $option_timeout );