How to remove trailing slash from URL in magento

[amber_long83]

Hi Friends

Does anyone help me to remove trailing slash from the URL in magento?

currently my URL is like

http://www.websitename.com/index.php/

i want to change this URL to http://www.websitename.com/index.php

Thanks in advanced

[NogDog]

$url = rtrim($url, '/');