3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $parameters = ['foo' => 'bar', 'baz' => ['zim', 'zam']]; $pairs = []; $join = function($value, $name, &$output) { $output[] = "$name=$value"; }; function walk(array $input, array &$output, callable $callback) { array_walk_recursive($input, function(&$value, $name) use (&$output, $callback) { $callback($value, $name, $output); }); } walk($parameters, $pairs, $join); var_dump($pairs, $parameters);
based on aLnnh
Output for 5.4.0 - 7.2.0
array(3) { [0]=> string(7) "foo=bar" [1]=> string(5) "0=zim" [2]=> string(5) "1=zam" } array(2) { ["foo"]=> string(3) "bar" ["baz"]=> array(2) { [0]=> string(3) "zim" [1]=> string(3) "zam" } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/IYuec on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/IYuec on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/IYuec on line 3
Process exited with code 255.