3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $d = 1; $e = 2; $a = ['b'=>['c'=>'d']]; echo $$a['b']['c'];
based on ehgEC
Output for 7.0.0 - 7.2.0
Notice: Array to string conversion in /in/ahKHB on line 7 Notice: Undefined variable: Array in /in/ahKHB on line 7
Output for 5.4.9 - 5.6.28
1
Output for 5.3.19 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/ahKHB on line 5
Process exited with code 255.