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run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array( "one" => 1, "two" => 2, "three" => 3, "seventeen" => 17 ); foreach ($a as $k => $v) { echo "$a[$k] => $v.\n"; }
Output for 4.3.0 - 5.6.30, hhvm-3.10.1, hhvm-3.12.14 - 3.13.2, hhvm-3.17.3, 7.0.0 - 7.2.0
1 => 1. 2 => 2. 3 => 3. 17 => 17.
Output for hhvm-3.11.1, hhvm-3.15.4

Process exited with code 137.