In 1994, an incredibly forward-thinking man named Rasmus Lerdorf developed a set of tools that used a parsing engine to interpret a few macros here and there. They were not extravagant: a guest book, a counter, and some other "home page" elements that were cool when the Web was in its infancy. He eventually combined these tools with a form interpretation (FI) package he had written, added some database support, and released what was known as PHP/FI.Then, in the spiri....

I believe that organization starts in UNIX. If your system is not well organized or you have not followed a consistent method, you may want to consider why this is a good idea. Many new administrators take simple organizational methodologies, such as the location of added software, for granted. A few months later the result is that changes, such as upgrades, require additional time to install and troubleshoot. In the end, you may save a considerable amount of time by doing thr....

We saw at the beginning of this section that one way to embed client-side JavaScript into HTML documents is to use event handler attributes of HTML tags. The following table lists the standard event handler attributes and the HTML tags to which they may be applied. The first column of the table gives the event handler attribute name: these names always begin with "on". The second column of the table lists the HTML tags to which these attributes can be applied, and ex....