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run code in 150+ php & hhvm versions
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<?php $a = 'Ukraine - Russia or Iran - Argentina'; preg_match('/(.+[ ]?[-]?[ ]?)/', $a, $m); var_dump($m);
Output for 4.3.0 - 7.1.0
array(2) { [0]=> string(36) "Ukraine - Russia or Iran - Argentina" [1]=> string(36) "Ukraine - Russia or Iran - Argentina" }