News Feed
Sections




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

SitePoint PHP Blog:
Sophisticated Object Iterators in PHP
May 05, 2011 @ 12:54:59

Following up on their earlier simple object iterators post, the SitePoint PHP blog is back with a look at more sophisticated iterators you can use to work with database record objects.

In my previous post, Simple Object Iterators in PHP, we discovered how to iterate over array items defined within an object using a foreach loop. However, what if you need to iterate over items which are not stored in an array, e.g. records from a database or lines of text read from a file?

He shows how to create a script that pulls in the users from a database object (PDO, in this case) and implements the Countable and Iterator interfaces. These interfaces give it some special methods that can give counts of the results and help you iterate through the results - current, rewind, next and valid.

0 comments voice your opinion now!
object iterator spl database result pdo countable implement


blog comments powered by Disqus

Similar Posts

Matthew Weir O'Phinney's Blog: Automating PHPUnit2 with SPL

PHPEasyStep.com: Sending forgotten password

Matthew Weir O'Phinney's Blog: PHP 5's Reflection API

DevShed: Tracking Website Statistics with PHP

DevShed: User-defined Interfaces in PHP 5 - Turning MySQL Classes into Interface Implementers


Community Events





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


framework testing interview series list language install code introduction unittest symfony2 refactor threedevsandamaybe release podcast configure community developer laravel opinion

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