> 4. Be careful with the $_GET[] array that Tony mentions, it is only
> available on more recent versions of PHP, before that it was
$HTTP_GET_VARS
> and a lot of people had been using just plain $var1 or whatever, assuming
> that "register_globals" would always be ON in the php.ini file (which also
> changed in recent versions).

> 4. Be careful with the $_GET[] array that Tony mentions, it is only
> available on more recent versions of PHP, before that it was
$HTTP_GET_VARS
> and a lot of people had been using just plain $var1 or whatever, assuming
> that "register_globals" would always be ON in the php.ini file (which also
> changed in recent versions).


register_globals was turned off by default in the INI file in 4.2.0+ so I
would recommend against using them. Besides compatability issues, there are
security issues with it. Of course, to maintain backward compatability
(Superglobals are only supported in 4.1.0+) you might want to use the
$HTTP_POST_VARS, $HTTP_GET_VARS e.t.c. which are being phased out however.

Remember though, 4.1.0 was released on the 10th of Decemeber, so there's a
good chance many hosts have upgraded to that version or greater, but there
are always the late ones.

Good reading: http://www.php.net/manual/en/language.variables.predefined.php

--------------
Adam Alkins
http://www.rasadam.com
--------------


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