News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

DevShed:
Null and Empty Strings
December 03, 2008 @ 11:16:51

On DevShed today, there's a new tutorial posted looking at two things that can cause headaches for PHP developers (especially when evaluating and comparing values) - nulls and empty strings.

Anyone who has programmed for any length of time has encountered the concepts of null and empty strings. They are not the same, and confusing the two can cause some serious problems. This article deals with these concepts in the context of PHP and MySQL.

They start with a bit of a quiz before getting into how to handle them correctly - making null "safe" and working with it correctly in a MySQL context. SQL statements and table structures are included for their examples.

0 comments voice your opinion now!
null empty string tutorial mysql handle safe


blog comments powered by Disqus

Similar Posts

DevShed: MySQL Table Prefix Changer Tool in PHP

XpertDeveloper.com: PHP clearstatecache() Explained

Dan Scott's Blog: Creating a MARC record from scratch in PHP using File_MARC

SitePoint PHP Blog: The Joy of Regular Expressions [2]

SitePoint PHP Blog: Find and Correct Misspelled Words with Pspell


Community Events





Don't see your event here?
Let us know!


opinion series install symfony update introduction language laravel api zendserver tips podcast package framework community release list interview deployment library

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework