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run code in 200+ php & hhvm versions
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<?php $data = ['zero', 'un', 'deux']; foreach ($data as $key => $val) { echo $key . ' => ' . $val; }
Output for 5.6.30, hhvm-3.15.4 - 3.22.0, 7.0.0 - 7.2.11
0 => zero1 => un2 => deux