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phpurlurl-encoding

PHP URL Encoding / Decoding

I used the solution accepted for this question for encrypting by id for example in /index.php?id=3 . The problem is I cannot send the encrypted value as an url, example /index.php?id=dsf13f3343f23/23=. Because sometimes it will have weird characters in the url e.g. notice the = sign in the end

Solution

  • The weird characters in the values passed in the URL should be escaped, using urlencode().


    For example, the following portion of code :

    echo urlencode('dsf13f3343f23/23=');

    would give you :

    dsf13f3343f23%2F23%3D

    Which works fine, as an URL parameter.


    And if you want to build aquery string with several parameters, take a look at the http_build_query() function.

    For example :

    echo http_build_query(array(
    'id' => 'dsf13f3343f23/23=',
    'a' => 'plop',
    'b' => '$^@test', 
));

    will give you :

    id=dsf13f3343f23%2F23%3D&a=plop&b=%24%5E%40test

    This function deals with escaping and concatenating the parameters itself ;-)