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Source View: pre_set_transient_{$transient}

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Line Code
783  *
784  * @param string $transient Transient name. Expected to not be SQL-escaped.
785  * @param mixed $value Transient value. Expected to not be SQL-escaped.
786  * @param int $expiration Time until expiration in seconds, default 0
787  * @return bool False if value was not set and true if value was set.
788  */
789 function set_transient( $transient, $value, $expiration = 0 ) {
790      global $_wp_using_ext_object_cache;
791
792      $value = apply_filters( 'pre_set_transient_' . $transient, $value );
793
794      if ( $_wp_using_ext_object_cache ) {
795           $result = wp_cache_set( $transient, $value, 'transient', $expiration );
796      } else {
797           $transient_timeout = '_transient_timeout_' . $transient;
798           $transient = '_transient_' . $transient;
799           if ( false === get_option( $transient ) ) {
800                $autoload = 'yes';
801                if ( $expiration ) {