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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
515      /**
516       * Fires immediately before a specific transient is deleted.
517       *
518       * The dynamic portion of the hook name, $transient, refers to the transient name.
519       *
520       * @since 3.0.0
521       *
522       * @param string $transient Transient name.
523       */
524      do_action( 'delete_transient_' . $transient, $transient );
525
526      if ( wp_using_ext_object_cache() ) {
527           $result = wp_cache_delete( $transient, 'transient' );
528      } else {
529           $option_timeout = '_transient_timeout_' . $transient;
530           $option = '_transient_' . $transient;
531           $result = delete_option( $option );
532           if ( $result )
533                delete_option( $option_timeout );