3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function isArrayFieldSet(array $array, $field, $separator = '/') { if (strpos($field, $separator) !== false) { $path = explode($separator, $field); $field = array_shift($path); if (!is_null($field) && isset($array[$field])) { if (count($path) > 0) { return isArrayFieldSet($array[], implode($separator, $path), $separator); } return true; } else { return false; } } return isset($array[$field]); } $array = [ 'a' => 'test', 'b' => [ 'b2' => 123, 'b3' => [ 'test' => true ] ] ]; $shouldPass = [ 'a', 'b', 'b/b2', 'b/b3', 'b/b3/test' ]; $shouldNotPass = [ 'c', 'b/b1', 'b/b2/bx', 'b/b3/test/x', 'c/L1', 'a/k15', ]; for ($i = 0; $i < 100; $i++) { foreach ($shouldPass as $test) { isArrayFieldSet($array, $test, '/'); } foreach ($shouldNotPass as $test) { isArrayFieldSet($array, $test, '/'); } }
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught Error: Cannot use [] for reading in /in/Bmfat:11 Stack trace: #0 /in/Bmfat(51): isArrayFieldSet(Array, 'b', '/') #1 {main} thrown in /in/Bmfat on line 11
Process exited with code 255.
Output for 5.4.9 - 5.6.28
Fatal error: Cannot use [] for reading in /in/Bmfat on line 11
Process exited with code 255.
Output for 5.3.19 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Bmfat on line 23
Process exited with code 255.