url function

[EcLip_e]

is there a function that retrieves the current URL?

[yelvington]

You should become acquainted with the superglobal array $_SERVER[], which contains the necessary information.

phpinfo() is your friend.

[rgermain]

You can also look into using:

$PHP_SELF

[EcLip_e]

will php self aslo return variables and parameters?

[laserlight]

yelvington mentioned that you should try [man]phpinfo/man.

You should also read the PHP Manual at php.net, and perhaps download it in chm form, if your computer can read that format.

As for your question, the answer is just try 😉
And try also others listed in the PHP Manual, under the appendix for reserved words.