3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class A { private $a = ['a' => 'func']; function func(){echo 'yay';} public function __construct() { $a['a'](); } } new A;
Output for 7.0.0 - 7.2.0
Notice: Undefined variable: a in /in/eHsd1 on line 11 Fatal error: Uncaught Error: Function name must be a string in /in/eHsd1:11 Stack trace: #0 /in/eHsd1(14): A->__construct() #1 {main} thrown in /in/eHsd1 on line 11
Process exited with code 255.
Output for 5.4.11 - 5.6.28
Notice: Undefined variable: a in /in/eHsd1 on line 11 Fatal error: Function name must be a string in /in/eHsd1 on line 11
Process exited with code 255.
Output for 5.3.21 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/eHsd1 on line 5
Process exited with code 255.