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&$ in functions

Hi guys,

at present I´m editing some old scripts from a colleague from mine. In
one function I fund something I didn´t understand. The function looks
like:

function foobar(&$val, $key = ' ')
{
...
}

Could anyone tell me what the &$ stands for? I tried to find some
informations in Google. But it is really difficult to find some
informations by using "php + &$" as a search string.

Thanks
Nov 30 '07 #1
3 8633
Niels Lange wrote:
Hi guys,

at present I´m editing some old scripts from a colleague from mine. In
one function I fund something I didn´t understand. The function looks
like:

function foobar(&$val, $key = ' ')
{
...
}

Could anyone tell me what the &$ stands for? I tried to find some
informations in Google. But it is really difficult to find some
informations by using "php + &$" as a search string.

Thanks
Hi,

read more here:
http://nl3.php.net/manual/en/languag...ences.pass.php

It is passing by reference.

Regards,
Erwin Moller
Nov 30 '07 #2
Niels Lange wrote:
Hi guys,

at present I´m editing some old scripts from a colleague from mine. In
one function I fund something I didn´t understand. The function looks
like:

function foobar(&$val, $key = ' ')
{
...
}

Could anyone tell me what the &$ stands for? I tried to find some
informations in Google. But it is really difficult to find some
informations by using "php + &$" as a search string.
By using this, you can allow your function to modify the referenced
variable.
http://php.net/language.references.pass

--
Kim André Akerø
- ki******@NOSPAM betadome.com
(remove NOSPAM to contact me directly)
Nov 30 '07 #3
Hi Erwin and Kim,

thanks for the quick answers!

Regards
Niels
Nov 30 '07 #4

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