ampersand symbol

[ScubaDvr2]

Hi. Can anyone tell me what the ampersand (&) does in front of a variable?

For example, note the & in front of $err_no and $err_str

$this->socket = fsockopen($this->smtp_host, $this->smtp_port, &$err_no, &$err_str);

Thanks

[LordShryku]

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

[ScubaDvr2]

Thanks a bunch.

Say, you woudln't happen to be able to answer my question in this post, would you?
http://www.phpbuilder.com/board/showthread.php?s=&threadid=10274996

thanks

[LordShryku]

No, never used smarty. Could tell you how to do it in plain php...

[ScubaDvr2]

Yeah regular php is the easy part. Unfortunately I don't believe the modulus operator exists in Smarty... nor do conditionals..
Thanks anyway.