Re: changing NULL behavior in PHP arithmetic

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 04/15/2010 02:46 AM, cr.vegelin@xxxxxxxxx wrote:
> Hi All,
> 
> Is there an option in PHP to change the behavior of NULL in PHP functions ?
> Now PHP uses NULL as a 0 (zero) for arithmetic, for example:
> NULL + 6 = 6
> NULL * 6 = 0
> NULL / 6 = 0
> 6 / NULL = Division by zero
> 
> What I need is the same behavior as #N/A (or =NA()) in Excel, where:
> #N/A + 6 = #N/A
> #N/A * 6 = #N/A
> #N/A / 6 = #N/A
> 6 / #N/A = #N/A
> 
> because arithmetic operations with "Unknown" operands should result to "Unknown" ...
> 
> TIA, Cor
> 

In what cases do you have a null var?

-- 
Thanks!
-Shawn
http://www.spidean.com

-- 
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php


[Index of Archives]     [PHP Home]     [Apache Users]     [PHP on Windows]     [Kernel Newbies]     [PHP Install]     [PHP Classes]     [Pear]     [Postgresql]     [Postgresql PHP]     [PHP on Windows]     [PHP Database Programming]     [PHP SOAP]

  Powered by Linux