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Zend Framework’s Podcast Reader Documentation
Using the Zend Framework can be incredibly frustrating due to the lack of clear documentation. Today I ran into an issue while trying to display an additional field from a RSS feed. The RSS feed is...
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Simple File Based Caching in PHP
Depending on the access pattern for the your data, file based caches are often more economical, despite being slower, than an in memory cache like Memcached or APC. Disk space is cheap and is...
View ArticleWorking with Big Integers in PHP
This is the start of a class I developed for working with URL shortening and doing math with large numbers such as Facebook User Ids. There are some issues with the implementation of base convert, but...
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Escaping Unicode Characters to HTML Entities in PHP
This is a severe hack I used to get around some character translation issues encountered with non-latin character sets. You should at all costs use a character set that supports international...
View ArticleValidating Credit Card Numbers
The easiest way to pre-verify a credit card value is entered correctly is to use the Luhn algorithm to check for mistakes. This is commonly referred to as a mod-10, mod10 or mod 10 check. It’s always...
View ArticlePHP’s Eval() is Evil
A clients server was recently compromised because of a bug in an old software package that allowed writing to the filesystem. During the normal execution of the app, the code inserted itself into other...
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Reading the Twitter Stream API with PHP
Monitoring a term like ‘Facebook’ with the Twitter Search API can result in hundreds of tweets every minute. If you continuously issue requests for the next set of data, you’ll eventually get a...
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Installing Facebook’s PHP SDK 101
Prerequisites: Familiarity with uploading PHP code, file includes and directory structures. If you are uncertain how to do any of these things, I recommend hiring someone to help you. Installing...
View ArticleAccessing PHP Constants In Heredoc Strings and More
PHP’s built in heredoc string syntax is extremely valuable for creating blocks of HTML within a PHP file, however, it’s not currently possible to include a constant value within the block. There are a...
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CodeIgniter Clippings for BBEdit
BBEdit is a powerful text editor, for Mac OS X, that provides nearly everything AF-Design needs to be effective when creating apps. While it’s not perfect, it works pretty well 99% of the time. It...
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