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What is the purpose of "&" in this code?

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  What is the purpose of "&" in this code? richard <noreply@example.com> - 2014-06-14 11:08 -0400
    Re: What is the purpose of "&" in this code? Christoph Michael Becker <cmbecker69@arcor.de> - 2014-06-14 17:57 +0200
    Re: What is the purpose of "&" in this code? bill <william@TechServSys.com> - 2014-06-14 14:32 -0400
    Re: What is the purpose of "&" in this code? Denis McMahon <denismfmcmahon@gmail.com> - 2014-06-14 20:04 +0000
    Re: What is the purpose of "&" in this code? Doug Miller <doug_at_milmac_dot_com@example.com> - 2014-06-15 01:25 +0000

#13848 — What is the purpose of "&" in this code?

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

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#13849

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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#13850

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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#13853

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@gmail.com

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#13854

richard <noreply@example.com> wrote in news:tvhj7dle16f3$.ro2c41zfpmyn.dlg@40tude.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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