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run code in 200+ php & hhvm versions
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<?php $a = array('test' => 'hello', 'hello' => 1); foreach($a as $b => $c) { print $a[$b]."\n"; }
Output for 4.3.0 - 5.6.30, hhvm-3.10.1 - 3.17.3, 7.0.0 - 7.2.0
hello 1