3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $obj = new stdClass(); $obj->bar = "123"; $data = ["foo" => "bar"]; $key = "foo"; echo $obj->{ $data[$key] },"\n"; echo $obj->{ ${'data'}[$key] },"\n"; echo "{$obj->{ $data[$key] }}\n"; echo $obj->{ $data[$key]},"\n"; echo "{$obj->{ ${'data'}[$key] }}\n"; echo $obj->{ ${'data'}[$key] },"\n"; echo "{${'obj'}->{ ${'data'}[$key] }}\n"; echo ${'obj'}->{ ${'data'}[$key] },"\n"; echo $obj->${'data'}[$key]=456;
based on F3ZMJ
Output for 7.0.0 - 7.2.0
123 123 123 123 123 123 123 123 Notice: Array to string conversion in /in/e6noS on line 21 456
Output for 5.4.11 - 5.6.28
123 123 123 123 123 123 123 123 456
Output for 5.3.21 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/e6noS on line 6
Process exited with code 255.