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run code in 200+ php & hhvm versions
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<?php $arr = array('a', 'b'); /*foreach ($arr as &$a) { var_dump($a); } var_dump($arr); */ foreach ($arr as $a) { var_dump($a); }
based on NPg79
Output for 4.3.0 - 7.2.0
string(1) "a" string(1) "b"