3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php phpversion() >= "7.0.1" or die(); $obj = new stdClass(); $obj->bar = "abc"; $data = array("foo" => "bar"); $key = "foo"; // the good: without and within a string echo $obj->{$data[$key]},"\n"; echo "{$obj->{$data[$key]}}\n"; // updating $obj->bar ... $obj->bar = "xyz"; // complex curly brace syntax: without and within a string echo $obj->{${'data'}[$key]},"\n"; echo "{$obj->{${'data'}[$key]}}\n";
based on UAPpf
Output for 7.0.1 - 7.2.0
abc abc xyz xyz
Output for 5.3.21 - 7.0.0