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run code in 150+ php & hhvm versions
Bugs & Features
<?php $text = "0,2-16 км/час"; preg_match('/(^[1-9]{1}$|^[1-4]{1}[0-9]{1}$|^50$)/', $text, $m); var_dump($m);
Output for 4.3.0 - 7.1.0
array(0) { }