3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php ${'1'} = 42; echo $['1']:
Output for 5.4.0 - 5.4.21
Parse error: syntax error, unexpected '[', expecting variable (T_VARIABLE) or '$' in /in/tdU6B on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected '[', expecting T_VARIABLE or '$' in /in/tdU6B on line 5
Process exited with code 255.