3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = []; $arr["test"] ?? echo "nope";
based on pRhSf
Output for 7.0.0 - 7.0.2
Parse error: syntax error, unexpected 'echo' (T_ECHO) in /in/v9pEB on line 4
Process exited with code 255.
Output for 5.4.11 - 5.6.17
Parse error: syntax error, unexpected '?' in /in/v9pEB on line 4
Process exited with code 255.
Output for 5.3.21 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/v9pEB on line 3
Process exited with code 255.