Problems with $PHP_SELF

[Bezzen]

This is probably really stupid, but I blame that it's pretty late. 🙂

If an URL is http://whatever.com/page.php?var=1&var2=2

then
<?php $PHP_SELF?>
prints the complete URL

<?php echo $PHP_SELF?>
prints just http://whatever.com/page.php

If I write something like this:
<a href="<?php $PHP_SELF?>&newvar=2">
the URL that gets printed is:
http://whatever.com/&newvar=2

What I'm trying to do is get the PHP_SELF (including the two variables) and then add a new variable to it. But, as you can see it doesn't go that well. 🙁

Anyone?

[matt_4013]

Firstly, when you're working with variables of this type (ie, ones defined before the script executes), you should be using the superglobals that correspond. For example, for $PHP_SELF, you would be using - $_SERVER['PHP_SELF'] . This is to provide more security. You can read more about them here.

Now, what you need to do what you want is the QUERY_STRING keye of the $_SERVER superglobal. You would use it like this:

echo "<a href=\"".$_SERVER['PHP_SELF']."?".$_SERVER['QUERY_STRING']."&amp;newvar=2\">Link to self</a>";

(When you're referring to newvar, use $_GET['newvar']) 😉

Hope that helps!
Matt

[Bezzen]

Thanks! 😃