3v4l.org

run code in 300+ PHP versions simultaneously
<?php phpversion() >= "7.0.1" or die(); $obj = new stdClass(); $obj->bar = "xyz"; $data = array("foo" => "bar"); $key = "foo"; echo "{$obj->{${data}[$key]}}\n";
Output for 7.2.0 - 7.2.24, 7.3.0 - 7.3.12
Warning: Use of undefined constant data - assumed 'data' (this will throw an Error in a future version of PHP) in /in/ePdRi on line 9 xyz
Output for 7.0.1 - 7.0.20, 7.1.0 - 7.1.33
Notice: Use of undefined constant data - assumed 'data' in /in/ePdRi on line 9 xyz
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0
preferences:
140.72 ms | 402 KiB | 134 Q