Hopefully this saves someone the few minutes it took for me to find this – pretty much everything you need to know!

Found this great presentation today on Slideshare by Manuel Lemos of PHPClasses.org:
“Sending E-mail that reaches the destination using PHP”.

It provides a basic overview of email protocols and systems and covers best practices to ensure email gets through, including specific reference to PHP classes he wrote. The MIME Email Message Sending PHP Class is really useful.

I have one web-based application that monitors various websites I work on and I get a downtime notification via SMS any time a site is down. I have also integrated SMS with osCommerce to send order notifications including the contents of the order. This is great for monitoring a low volume sideline store. There are lots of applications for this of course.

I have used Aleksandar Markovic’s Clickatell SMS API for a number of years. It supports CURL and fopen for the HTTP request and is very easy to integrate into your application.

I had to look at the WordPress core code to work this out – thought I was going nuts. If you apply new rewrite rules using the rewrite_rules_array filter you need to ensure that you refresh the rewrite rules that WordPress has stored in a hidden option. You do this by simply resaving the Permalink Structure under the Options menu in the admin area of your WP install.

Not immediately obvious that this would be required, but makes sense that they generate the rules and store them at this point.

Maxmind offers a free Geolocation database, GeoLite Country which allows lookup of country from an IP. They claim it to be 99.3% accurate. They have a paid version that is more accurate. They also offer other databases, including one to lookup a city from an IP. The database is available as CSV data or in binary format. The binary format is very easy to implement as they provide APIs in a variety of languages. I used their PHP API. There are code samples to get things going quickly.

I used their PHP class which was the easiest to implement. Simply upload the class file and binary file and require the class file. The calls are simple and the lookup is fast. Very easy to implement.

The comments in this article are very accurate of my thoughts/experience implementing Amazon’s Seller Central SOAP API using PHP (they are using Java) …

My time getting to the ‘hello world’ stage on this interface was measured in days vs minutes for pretty much every other system I have worked with.

Good notes on implementing Amazon’s Seller Central SOAP API

That article should help anyone regardless of the particular language they are using to do this. It helped me with one important final aspect that was undocumented by Amazon.

For more specific notes on doing this with PHP check out the last chapter of this book …

The Web Developer’s Guide To Amazon E-Commerce Service

A couple of key things in there will overcome issues with the particular way the Amazon SOAP server works. There will still be problems – but that will get you much of the way.

Note: don’t waste your time with Amazon AIM. As the article above mentions, unless you have an old account migrated from Amazon’s Marketplace system it will only work to download reports – it will not allow adding or updating products.

The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!)

Good for any PHP coder to read, especially as the documentation on this stuff at PHP.net is a bit on the lean side.

Update:Character Sets / Character Encoding Issues from WACT with lots of PHP-specific information.