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Source View: pre_transient_{$transient}

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Line Code
659       *
660       * @since 2.8.0
661       * @since 4.4.0 The `$transient` parameter was added
662       *
663       * @param mixed  $pre_transient The default value to return if the transient does not exist.
664       *                              Any value other than false will short-circuit the retrieval
665       *                              of the transient, and return the returned value.
666       * @param string $transient     Transient name.
667       */
668      $pre = apply_filters( "pre_transient_{$transient}", false, $transient );
669      if ( false !== $pre )
670           return $pre;
671
672      if ( wp_using_ext_object_cache() ) {
673           $value = wp_cache_get( $transient, 'transient' );
674      } else {
675           $transient_option = '_transient_' . $transient;
676           if ( ! wp_installing() ) {
677                // If option is not in alloptions, it is not autoloaded and thus has a timeout