double $$ variables

[sssweb]

Is there some special meaning if a variable is designated as $$variable (as opposed to $variable), or is this simply a typo in a script I found on the web.

[dmorison]

It is valid PHP, and means "the variable of the name in the variable". So, if you went:

$foo = "bar";
$$foo = "Hello!";
print $bar;

You would see "Hello!" displayed.

[eelixduppy]

Seems like you have run into some variable variables [us2.php.net]. Although they can be extremely useful, they look pretty intense at first.

[whoisgregg]

It could be a variable variable [php.net] (or a typo). :)

[sssweb]

Thanks, guys

Re"
"It could be a variable variable (or a typo). :) "

Yes, but at least it's not DEFINITELY a typo...so there's hope!