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What is the purpose of "&" in this code? [message #186110]

Sat, 14 June 2014 15:08

Mr Oldies
Messages: 241
Registered: October 2013

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Senior Member

foreach($master as &$ma)
$tmp[] = &$ma["date"];
array_multisort($tmp, $master);
foreach($master as &$ma)
echo $ma["date"]."<br/>";

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Re: What is the purpose of "&" in this code? [message #186111 is a reply to message #186110]

Sat, 14 June 2014 15:57

Christoph Michael Bec
Messages: 207
Registered: June 2013

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Senior Member

richard wrote:

> foreach($master as &$ma)
> $tmp[] = &$ma["date"];
> array_multisort($tmp, $master);
> foreach($master as &$ma)
> echo $ma["date"]."<br/>";

See <http://www.php.net/manual/en/language.references.php> and
<http://www.php.net/manual/en/control-structures.foreach.php>.

--
Christoph M. Becker

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Re: What is the purpose of "&" in this code? [message #186112 is a reply to message #186110]

Sat, 14 June 2014 18:32

bill
Messages: 310
Registered: October 2010

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Senior Member

On 6/14/2014 11:08 AM, richard wrote:
>
> foreach($master as &$ma)
> $tmp[] = &$ma["date"];
> array_multisort($tmp, $master);
> foreach($master as &$ma)
> echo $ma["date"]."<br/>";
>

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

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Re: What is the purpose of "&" in this code? [message #186115 is a reply to message #186110]

Sat, 14 June 2014 20:04

Denis McMahon
Messages: 634
Registered: September 2010

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Senior Member

On Sat, 14 Jun 2014 11:08:48 -0400, richard wrote:

> [code]

Either (a) ask the person who wrote the code, or (b) read the manual
yourself.

--
Denis McMahon, denismfmcmahon(at)gmail(dot)com

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Re: What is the purpose of "&" in this code? [message #186116 is a reply to message #186110]

Sun, 15 June 2014 01:25

Doug Miller
Messages: 171
Registered: August 2011

Karma: 0

Senior Member

richard <noreply(at)example(dot)com> wrote in news:tvhj7dle16f3$(dot)ro2c41zfpmyn(dot)dlg(at)40tude(dot)net:

>
> foreach($master as &$ma)
> $tmp[] = &$ma["date"];
> array_multisort($tmp, $master);
> foreach($master as &$ma)
> echo $ma["date"]."<br/>";
>

RTFM, RtS.

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