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run code in 200+ php & hhvm versions
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<?php $a = 'Ukraine - Russia or Iran - Argentina'; preg_match('/(\w)+/', $a, $m); var_dump($m);
Output for 4.3.0 - 5.6.30, hhvm-3.10.1 - 3.17.3, 7.0.0 - 7.1.7
array(2) { [0]=> string(7) "Ukraine" [1]=> string(1) "e" }