+ public function changeTTL( $key, $expiry = 0 ) {
+ list( $server, $conn ) = $this->getConnection( $key );
+ if ( !$conn ) {
+ return false;
+ }
+
+ $expiry = $this->convertToRelative( $expiry );
+ try {
+ $result = $conn->expire( $key, $expiry );
+ } catch ( RedisException $e ) {
+ $result = false;
+ $this->handleException( $conn, $e );
+ }
+
+ $this->logRequest( 'expire', $key, $server, $result );
+ return $result;
+ }
+