[pmwiki-devel] Testing empty string (was:php logic question)

Hans design5 at softflow.co.uk
Wed Mar 14 04:30:24 CDT 2007


Wednesday, March 14, 2007, 9:00:29 AM, christian wrote:

> but as it's not NULL

BTW, what is the difference between NULL and ""
(and 0 for that matter)?


Hans




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