3v4l.org

run code in 500+ PHP versions simultaneously
<?php function method(?string ...$args) { var_dump($args); foreach ($args as $line) echo $line . PHP_EOL; } method('1', '2'); method('1'); method();
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/O85Hh on line 3
Process exited with code 255.
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
Parse error: syntax error, unexpected '?', expecting variable (T_VARIABLE) in /in/O85Hh on line 3
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Parse error: syntax error, unexpected '?', expecting '&' or variable (T_VARIABLE) in /in/O85Hh on line 3
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '?', expecting '&' or T_VARIABLE in /in/O85Hh on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '?', expecting '&' or T_VARIABLE in /in/O85Hh on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '?', expecting ')' in /in/O85Hh on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected '?', expecting ')' in /in/O85Hh on line 3
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
array(2) { [0]=> string(1) "1" [1]=> string(1) "2" } 1 2 array(1) { [0]=> string(1) "1" } 1 array(0) { }

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37.6 ms | 1165 KiB | 23 Q