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run code in 150+ php & hhvm versions
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<?php $a = array(0, 1, 2); function foo($a) { $a[1] = 'bar'; } foo($a); var_dump($a);
Output for 4.3.0 - 7.1.0
array(3) { [0]=> int(0) [1]=> int(1) [2]=> int(2) }