3v4l.org

run code in 300+ PHP versions simultaneously
<?php phpversion() >= "7.0.1" or die(); $obj = new stdClass(); $obj->bar = "abc"; $data = array("foo" => "bar"); $key = "foo"; echo "{$obj->{$data[$key]}}\n";
Output for 7.0.1 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
abc
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0
preferences:
146.77 ms | 402 KiB | 196 Q