Re: [PHP] changing NULL behavior in PHP arithmetic

From: Ashley Sheridan To: cr.vege...@gmail.com Cc: php-general@lists.php.net Sent: Thursday, April 15, 2010 10:08 AM Subject: Re: [PHP] changing NULL behavior in PHP arithmetic On Thu, 2010-04-15 at 09:46 +0200, cr.vege...@gmail.com wrote: Hi All, Is there an option in PHP to

Re: [PHP] changing NULL behavior in PHP arithmetic

>> because arithmetic operations with "Unknown" operands should result to >> "Unknown" ... in PHP "Unknown" values are represented by NaN, not NULL http://php.net/manual/en/function.is-nan.php but what surprises me is is_nan(6/0) = (bool)false (along with a warning) >> Now PHP uses NULL as a 0 (

Re: [PHP] changing NULL behavior in PHP arithmetic

On Thu, 2010-04-15 at 09:46 +0200, cr.vege...@gmail.com 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 > > W

[PHP] changing NULL behavior in PHP arithmetic

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