3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test(&$v) { $v = $v + $v; } $v = 8; test($v); echo $v
Output for 5.4.0 - 5.4.19, 5.5.0 - 5.5.3
Parse error: syntax error, unexpected end of file, expecting ',' or ';' in /in/5C5ag on line 10
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected $end, expecting ',' or ';' in /in/5C5ag on line 10
Process exited with code 255.
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177.91 ms | 1399 KiB | 59 Q