Re: PHP: array with null shows different with print_r and var_dump
| From: | Casey | Date: | Wed, 02 Apr 2008 06:57:42 +0000 |
| Subject: | Re: PHP: array with null shows different with print_r and var_dump | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-272430@lists.php.net to get a copy of this message | ||
On Tue, Apr 1, 2008 at 11:49 PM, Sanjay Mantoor
<sanjay.mantoor@gmail.com> wrote:
> Hello,
>
> I am new to PHP and PHP community.
>
> Following program outputs different values with print_r and var_dump.
>
> $array = array(null, NULL);
>
> print_r($array); prints values like below
> Array
> (
> [0] =>
> [1] =>
> )
>
print_r converts null, which is a variable type, like integer, string,
float, etc, into an empty string.
> where as var_dump($array) prints values like below
> array(2) {
> [0]=>
> NULL // Does this convert to null to NULL?
null is case-insensitive, so it doesn't matter how you type it.
> [1]=>
> NULL
> }
var_dump converts null into the string "NULL".
>
> Can you tell me why the above difference?
>
--
-Casey