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<?php /**** PlaceHolder to emulate file ****/ $input = <<<EOL RFHSEP34 | 20 RETBBHUJ | 10 TYRHBNNM | 5 EOL; $_POST['disCode'] = 'RETBBHUJ'; $total = 500; $total -= preg_match('#^' . preg_quote(substr($_POST['disCode'] ?? '', 0, 8)) . ' \| \K\d+(?=\h*$)#m', $input, $m) ? (int) $m[0] : 0; var_export($total);
preferences:
33.01 ms | 407 KiB | 5 Q