3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $_2 = 1; echo $_{++1};
Output for 5.4.0 - 5.4.30
Parse error: syntax error, unexpected '1' (T_LNUMBER) in /in/kpAoH on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_LNUMBER in /in/kpAoH on line 3
Process exited with code 255.