3v4l.org

run code in 300+ PHP versions simultaneously
<?php function say(...$what) { return implode(' ', $what); } echo say('Hello', 'World', ...['from', 'PHP 5.6'], '.');
Output for 5.4.0 - 5.4.27
Parse error: syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in /in/hmi50 on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '.', expecting '&' or T_VARIABLE in /in/hmi50 on line 4
Process exited with code 255.
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188.61 ms | 1395 KiB | 64 Q