3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array(array(1,2),'3'); foreach($a as $k => $b) { $a[$k][] = 3; } print_r($a);
based on M9amL
Output for 7.0.0 - 7.2.6
Fatal error: Uncaught Error: [] operator not supported for strings in /in/e6f47:4 Stack trace: #0 {main} thrown in /in/e6f47 on line 4
Process exited with code 255.
Output for 4.3.2 - 5.6.28
Fatal error: [] operator not supported for strings in /in/e6f47 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: [] operator not supported for strings in /in/e6f47 on line 4