How can PHP developers handle passing parameters like 'cid=1&template=counter.html' when including files in PHP to prevent issues like not displaying anything on the page?

When including files in PHP that contain parameters like 'cid=1&template=counter.html', developers can use the PHP function `urlencode()` to encode the parameters before passing them in the include statement. This will prevent any issues with special characters or spaces in the parameters that could cause the file not to display properly.

$parameters = urlencode('cid=1&template=counter.html');
include 'yourfile.php?' . $parameters;