Online PHP editor | output for PuGNF

<?php $case = '2 s foo'; function test($case) { $reg1 = <<<'REGEX' / ^ (?<int> (?:\G|(?!\n)) \s*\b \d{1,5} \s* ) (?<timepart> (?: s | m | h | d ) \b ) (?<string>.+) $ /uix REGEX; $out = preg_replace_callback ($reg1, function($matches){ switch($matches['timepart']){ case 's': $m = 'sec'; break; case 'm': $m = 'min'; break; case 'h': $m = 'hr'; break; case 'd': $m = 'day'; break; } return $m; }, $case); return $out; } $output = test($case); print_r($output);