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run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = [1,2,3]; $brr = &$arr; foreach ($brr as $val) { print($val); $val = 'x'; } var_dump($arr); var_dump($brr);
Output for 5.4.9 - 7.2.0
123array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) }
Output for 5.3.19 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/4QrkQ on line 3
Process exited with code 255.