3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = isset($result, $result->property, $result->f()->a); $a = isset($result, $result->property, $result->f());
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.6
Fatal error: Cannot use isset() on the result of an expression (you can use "null !== expression" instead) in /in/JS00J on line 4
Process exited with code 255.
preferences:
172.43 ms | 1395 KiB | 35 Q