parameters outside the function

[The Little Guy]

I am making a function it returns one thing, but I would the like to put something into a variable to use outside the function.

 

for example, the third parameter in preg_match() sets a variable that you can then use later in your code, how can I create a parameter like that?

[xyph]

Passing by reference

 

http://php.net/manual/en/language.references.pass.php

[The Little Guy]

haha, thanks, but I just figured it out!

 

<?php
function something(&$var){
$var = "hello";
return true;
}
something($cat);
echo $cat;
?>