Plus sign in GET query and compare URL-CodePudding

I want to check the current URL of the page if include sign in the query if there is no sign I will rewrite the URL and 301 redirect to a new one.. for example

www.sitename.com/search?q=123 456

this should be

www.sitename.com/search?q=123 456

First I was thinking to make this with PHP, first, $_GET['q'] and clean string, replace space with and compare with the current one $_GET['q'] in URL but the problem is because I can't get sign in $_GET and simple I can't check if URL include sign .

Another option is to make this with .htaccess

RewriteCond %{QUERY_STRING} ^q=(.*)$
RewriteRule ^search$ test.php?mode=search&q=%1 [L]

But I believe this can be better done with PHP because there is more query parameter that isn't just q

Some ideas were

    $q1 = cleanq($_GET['q']) //This query include  ,cleanq is function to clean string and replace space with  
    $q2 = $_GET['q'] //This is current one
    if(strcmp($q1, $q2) != 0){
        header("HTTP/1.1 301 Moved Permanently");
        header("Location: www.sitename.com/search?q=".$q1);
        exit();
    }

Looks simple but can't get the sign-in query to compare, any idea how to make this?

CodePudding user response：

Because of the URL specification, the character in URLs must be interpreted as a space, as plain spaces are not allowed in URLs.

You don't have to worry about redirecting www.sitename.com/search?q=123 456 to www.sitename.com/search?q=123 456, it's the same link.

You can do a simple test in a PHP file:

test.php?search1=aaa bbb&search2=aaa bbb

if ($_GET['search1'] == $_GET['search2']) {
    print 'Same string!';
}

You'll get Same string!

If you want to update the current URL you can do it with javascript, by replacing the encoded url space with

<script>
    const url = window.location.href.replace(/ /, " ");
    window.history.replaceState(null, null, url)
</script>

PHP redirect using $_SERVER['REQUEST_URI']

if (stripos($_SERVER['REQUEST_URI'], ' ') !== false) {
    $request_uri = str_replace(' ', ' ', $_SERVER['REQUEST_URI']);
    $request_uri = preg_replace('/([ ])\1 /', '$1', $request_uri);

    if ($request_uri != $_SERVER['REQUEST_URI']) {
        header("HTTP/1.1 301 Moved Permanently");
        header("Location: " . $request_uri);
    }
}