php null is undefined value?

Question

Possible Duplicate:
PHP: “Notice: Undefined variable” and “Notice: Undefined index”

I got error:

Notice: Undefined variable: null

Line in code is:

$input = new $class($company, null, $sablonas, $null, $value);

Class constructor is:

public function __construct($company, $document, $sablonas, $options, $value = null) {

How I can pass a null value?

score 6 · Accepted Answer · answered Sep 24 '11 at 00:32

$input = new $class($company, null, $sablonas, $null, $value);
//                             ^                 ^
//                            (1)               (2)

It's talking about (2), not (1). You have a typo with $null.

The notice message "Undefined variable: null" is a little misleading here, but consider the following case:

<?php
error_reporting(E_ALL | E_NOTICE);
echo $lol;
// Output: "Notice: Undefined variable: lol in /t.php on line 3"
?>

You can see that the $ isn't included in the name that the notice message gives you, so if you follow this logic back you arrive at the conclusion I made at the top of this answer.

score 4 · Answer 2 · answered Sep 24 '11 at 00:31

You have $null as a variable:

$input = new $class($company, null, $sablonas, $null, $value);
//------------------------------------------^^^^^^^^^^

// Guessing that's supposed to be
$input = new $class($company, null, $sablonas, null, $value);
//-------------------------------------------^^^^^^^^

score -2 · Answer 3 · edited Sep 26 '11 at 18:06

-2

$null = NULL;

edited Sep 26 '11 at 18:06

Conrad Frix

50,756
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answered Sep 24 '11 at 00:33

Dejan Marjanović

19,004
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1

The minimum character requirement is there to encourage you to write actual words and sentences in answers, not to write arbitrary fluff to subvert it. Seems obvious. – Lightness Races in Orbit Sep 24 '11 at 00:35
The question was `How I can pass a null value?`, it is 28 characters, so I answered in the same manner... – Dejan Marjanović Sep 24 '11 at 00:38
5

It seems you've missed my point. – Lightness Races in Orbit Sep 24 '11 at 00:41
I disagree that you need more words, but you could be more subtle about it. – Lance Roberts Sep 24 '11 at 05:18

php null is undefined value?

3 Answers3