Sample Code: PHP Captcha Simple
Problem: Web form spam or bot induced form submissions is a common issue these days on we pages that have forms. The simplest way to thwart such spam is to use a. There are many varieties of captcha...
View ArticleSample Code: Basic Login , Roles authentication and Login attempt alerts.
Problem: In most web based system one of the most commonly used process is user authentication and page access. This Login function is pretty typical here’s my example: Notice I set a bunch of session...
View ArticleSample Code: prevent web page overwrites
Below are some interesting problems and solutions that I have come accross. Problem: In a web based system how to you prevent multiple updates to the same record by different users seeing potentially...
View ArticleSample Code: Quick and Dirty PHP Cache
Here’s a variation of a PHP caching script. One of the things I frequently find myself doing for page(s) that take a long time to render, especially if they are a long running process, is to generally...
View ArticleCode Sample: PHP Currency converter with caching RSS Feed
Problem: For a recent project I needed to get the latest exchange rates to allow the sales folks to quickly calculate exchange rates while doing estimates in different currencies. There are many sites...
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