iamcal publishing empire
This is the place to find articles written by Cal Henderson.
Basic Javascript
Variable scoping [pdf]
Practical Javascript
Fixing common bugs [pdf]
Working with cookies [pdf]
Advanced Javascript
Amazon library [pdf]
Google Highlighting [pdf]
Javascript E-Commerce [pdf]
Perl
Regular Expression Primer [pdf]
PHP
Human Readable Numbers [pdf]
Parsing Email Adresses in PHP [pdf]
Processing HTML [pdf]
Processing HTML, Part 2 [pdf]
Search term highlighting [pdf]
Searching with PHP and MySQL [pdf]
Writing cleaner code [pdf]
Writing secure and portable PHP applications [pdf]
Web Security
Designing user authentication systems [pdf]
The problem with cookie authentication systems [pdf]
Blog Hacks
Amazon product links for an international audience (unfinished) [pdf]
Comments popups (non-javascript) [pdf]
Fixing Broken CSS Box Models [pdf]
How to highlight search words from Google [pdf]
Javascript email addresses [pdf]
Moving things around with mod_rewrite (very rough) [pdf]
Opening links in a new window [pdf]
Skinning with stylesheets [pdf]
Using a dropdown for your blogroll [pdf]
Using an atomz.com search engine [pdf]
Using google to allow searching of your archive [pdf]
Misc Tech
"Get Caught Mapping" Interview [pdf]
Connect 4 Maths [pdf]
Connect 4 Theory [pdf]