Today I ran accross the blog entry by Marcelo Calbucci, called "Web Developers: Speed up your pages!". It’s a typical example of good idea, bad execution. Most of the points he mentions are really bad practice. He suggests reducing traffic (and therefore loading time) by removing whitespace from the source code, to write all code…

Have you ever received weird spam via the feedback form of your site? Something with your own address as sender or with some Mime stuff in the body? Your form is likely to be misused for spamming. How does it work? For PHP, for example, there is the mail function that can be used to…