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<?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_dump(isset(0)); var_dump(!empty(0)); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Cannot use isset() on the result of an expression (you can use "null !== expression" instead) in /in/CqdZM on line 10
Process exited with code 255.

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