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run code in 300+ PHP versions simultaneously
<?php interface Collection extends \Traversable { /** * @return bool */ function isEmpty(); /** * @param callable $map * @return Collection */ function map(callable $map); /** * @param callable $filter * @return Collection */ function filter(callable $filter); /** * @param int $n * @return Collection */ function limit($n); /** * @param $initialValue * @param callable $combine * @return mixed */ function reduce($initialValue, callable $combine); /** * @param int $n * @return Collection */ function skip($n); /** * @param int $start * @param int $count * @return Collection */ function slice($start, $count); /** * Note that if you attempt to use keys that are not valid as a PHP array key then you will get errors. * @return array */ function toArray(); /** * @return Collection containing the keys as the values */ function keys(); /** * @return Collection containing the values but ignores keys */ function values(); }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/EcqeF on line 3
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/EcqeF 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 T_STRING in /in/EcqeF on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/EcqeF on line 3
Process exited with code 255.

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