Best way to remove trailing slashes in URLs with PHP

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广开言路
广开言路 2021-01-31 07:40

I have some URLs, like www.amazon.com/, www.digg.com or www.microsoft.com/ and I want to remove the trailing slash, if it exists, so not j

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  •  说谎
    说谎 (楼主)
    2021-01-31 07:51

    I came here looking for a way to remove trailing slash and redirect the browser, I have come up with an answer that I would like to share for anyone coming after me:

    //remove trailing slash from uri
    if( ($_SERVER['REQUEST_URI'] != "/") and preg_match('{/$}',$_SERVER['REQUEST_URI']) ) {
        header ('Location: '.preg_replace('{/$}', '', $_SERVER['REQUEST_URI']));
        exit();
    }
    

    The ($_SERVER['REQUEST_URI'] != "/") will avoid host URI e.g www.amazon.com/ because web browsers always send a trailing slash after a domain name, and preg_match('{/$}',$_SERVER['REQUEST_URI']) will match all other URI with trailing slash as last character. Then preg_replace('{/$}', '', $_SERVER['REQUEST_URI']) will remove the slash and hand over to header() to redirect. The exit() function is important to stop any further code execution.

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