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

DevShed: Working with Prepared Queries with PDO Objects in PHP 5

Michael Girouard's Blog: Rolling Your Own MVC: The Page Load Scenario

Stuart Herbert's Blog: Learning PHP Data Objects, by Dennis Popel

Karl Katzke's Blog: PHP: Symfony vs. Zend

Stubbles Blog: Two New PHP6 Wishlist Items


Community Events

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


language composer introduction example project application framework laravel list conference community part2 series api interview symfony yii2 opinion podcast php7

All content copyright, 2015 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework