<?php $string = '+6 year +1 month'; preg_match('/\+(\d+)\smonth/', $string, $monthMatch); preg_match('/\+(\d+)\syear/', $string, $yearMatch); $monthInterval = isset($monthMatch[1]) ? (int)$monthMatch[1] : 0; $yearInterval = isset($yearMatch[1]) ? (int)$yearMatch[1] : 0; $var = false; var_dump(isset($var)); var_dump(!empty($var)); ?>
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