reference paramters and pointers

[Anon]

is it possible to use reference parameters or pointers in PHP like it is in C++?

for example:

function square($n)
{
$n = $n * $n;
}

can I make $n a reference paramater, like saying square(int & n) in a C++ function so it modifies the variable passed to it instead of creating a new copy?

[ame12]

Yep... you can definitely do that.

function foo(&$a1) {
$a1 = "blah!";
}

$a1 = "test";
foo(&$a1);
echo("a1 is $a1<br>");

outputs "a1 is blah!<br>"

Dave

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[Anon]

thanks, that was simple!