How can the presence of an ending slash affect the display of PHP pages on a website?

The presence of an ending slash in a URL can affect the display of PHP pages on a website by causing the server to treat the URL as a directory instead of a file. This can result in a "404 Page Not Found" error or incorrect rendering of the page. To solve this issue, you can use URL rewriting rules in the .htaccess file to remove the ending slash from URLs.

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [L,R=301]