PHP web page passes parameters

$k = $_REQUEST['k'];
			if (!empty($k))
			{
				$k = trim($k);
				echo 'python ./some.py '.$k;
			}

http://localhost/IptPerf/showResult.php?k=23

The above introduces the parameters passed by PHP web pages, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.