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<?php function f() { $a = intval(1); $b = intval(2); $c = ($a & $b); var_dump($a); var_dump($b); var_dump($c); return array(($a & $b), $c); } var_dump(f()); ?>
Output for 4.3.0 - 7.1.0
int(1) int(2) int(0) array(2) { [0]=> int(0) [1]=> int(0) }