3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = "string 1"; $x[] = "string 2"; var_dump($x);
Output for 7.0.0 - 7.3.0rc3
Fatal error: Uncaught Error: [] operator not supported for strings in /in/PcAbQ:5 Stack trace: #0 {main} thrown in /in/PcAbQ on line 5
Process exited with code 255.
Output for hhvm-3.15.4
Fatal error: Uncaught Error: [] operator not supported for strings in /in/PcAbQ:5 Stack trace: #0 {main}
Process exited with code 255.
Output for 5.6.0 - 5.6.30
Fatal error: [] operator not supported for strings in /in/PcAbQ on line 5
Process exited with code 255.