40 useful tips for optimizing your php code

If you want to use ActiveX controls on a web page, you need to sign the code if you want the control to be loaded. However, if you cannot afford to buy a certificate, what are your options ?

Say you have a list of links displayed on your website, and you want to rotate those links randomly every time the page is loaded. Here is how it's done.

HTTP is a stateless protocol. This means
when you load a page, you're finished as far as the web server is
concerned. If you reload a page, the new request isn't associated in any
way with the previous one. This is why you use session cookies to store a state.

This is a method of submitting a form without loading another page, and without using AJAX, or any other mambo-jumbo . It is a simple way of uploading files to your server, using a hidden iframe

Should this idea even be taken into consideration ? I mean ... to compare a database query to XPath ? Using a database would surely give you more speed, but would using XML make you a pioneer web development techniques ? Well ...

You have probably see a lot of web pages that have weird unreadable chars, or maybe just a lot of question marks instead of letters. That is what we call an encoding problem. Find out how to fix it.

There are a lot of php frameworks out there, so why shoud you bother designing a new one, when you could easily get a good framework for free ?