Array Question View as Markdown

On Thu, 17 Jun 2004 10:33:39 +0200 (CEST)
Derick Rethans derick@php.net wrote:

Hello,

In PHP4 and PHP5 the following syntax works fine (note the last
comma):

array
(
1 => 'bob',
2 => 'sam',
);

Is being able to have a comma at the END of an array definition a
supported feature, or an undocumented feature that should not be
used?

It's an undocumented feature AFAIK.

There is user note about it here:
http://www.php.net/manual/en/function.array.php

10-May-2003 03:53
Similarly to a comment by stlawson at sbcglobal dot net on this page:
http://www.php.net/basic-syntax.instruction-separation

It is usually advisable to define your arrays like this:
$array = array(
'foo',
'bar',
);

Note the comma after the last element - this is perfectly legal.
Moreover, it's best to add that last comma so that when you add new
elements to the array, you don't have to worry about adding a comma
after what used to be the last element.

$array = array(
'foo',
'bar',
'baz',
);

But yes, perhaps it should be mentioned in the doc, that the comma at
the end is ok.

WBR,
Antony Dovgal aka tony2001
tony2001@phpclub.net || antony@dovgal.com

Is being able to have a comma at the END of an array definition a supported
feature, or an undocumented feature that should not be used?

If I remember correctly, Zeev or Andi specifically added it as a
result of a user request, so I'd say it's an undocumented feature.

At the end of the array definition or after the last defined array
entry? If the latter... good feature. Hope it's there to stay since it
makes cutting and pasting to arrays a lot easier and various other
automated array building tasks :)

Cheers,
Rob.

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I guess that was <= 4.1.0 as i get errors at work ( 4.0.x ) and
everything went fine as i misstyped today using 5.0.0rc3 :-)

--red

Adam Maccabee Trachtenberg wrote:

Is being able to have a comma at the END of an array definition a supported
feature, or an undocumented feature that should not be used?

If I remember correctly, Zeev or Andi specifically added it as a
result of a user request, so I'd say it's an undocumented feature.

-adam