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run code in 300+ PHP versions simultaneously
<?php function gen($first, $last) { for($i = $first; $i < $last + 1; ++$i) { yield $i; } } echo '5 -> 10:' . PHP_EOL; foreach (gen(5, 10) as $val) { echo $val . PHP_EOL; } $g = gen(1, 5); var_dump($g);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
5 -> 10: 5 6 7 8 9 10 object(Generator)#2 (0) { }
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$i' (T_VARIABLE) in /in/tpkSh on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_VARIABLE in /in/tpkSh on line 5
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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_VARIABLE in /in/tpkSh on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/tpkSh on line 5
Process exited with code 255.

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