3v4l.org

run code in 300+ PHP versions simultaneously
<?php function sum(x,y){ echo a+b; } sum(3,4); ?>
Output for 5.6.8 - 5.6.15
Parse error: syntax error, unexpected ',', expecting variable (T_VARIABLE) in /in/hiPg4 on line 3
Process exited with code 255.
Output for 5.5.24 - 5.5.30
Parse error: syntax error, unexpected ',', expecting '&' or variable (T_VARIABLE) in /in/hiPg4 on line 3
Process exited with code 255.
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164.28 ms | 1395 KiB | 22 Q