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PHP

Journal Journal: PHP Tutorial - Variables

A variable is a means of storing a value, such as a text string or a number. In PHP you do not have to declare your variable, as it's automatically declared when you set it. Since you do not need to declare the variable, you do not have to specify what kind of data it contains either.
User Journal

Journal Journal: Getting started with PHP

Worth your while if you're interested in PHP development. First part in the novice series:

If you want to learn the basics of PHP, then you've come to the right place. The goal of this series is to teach you everything you need to know about PHP so that you can:

  • Create and design your own PHP project
  • Understand and customize PHP scripts found on the net
  • Become the ultimate PHP guru
User Journal

Journal Journal: Password hashing with sha256

Securing your users passwords is essential if you run a web site that require users to log in, but this issue is too often neglected, and many web sites store user profiles in with plain text passwords. Here's why this is a bad for everyone (http://blog.magicode.org/content/Password_hash_and_salt_with_sha256), and a class for you php developers to use.
Programming

Journal Journal: Rewriting with Apache

At Magicode.org I've written short how to for configuring Apache with wildcard domains.

Setting up wildcard domains with Apache is easy peasy. Step one is configuring the A Record for your domain. Step two is configuring httpd.conf to accept wildcard via ServerAlias. Step three, and this is the tricky part, is setting up Apache's RewriteEngine syntax. At Magicode.org, you get the whole working setup.

PHP

Journal Journal: A note on modulus

Using bitwise operators are faster than modulus operators, right? Apparently this is not the case with PHP.

At Magicode.org, I've taken a hard look at whether using a ternary operator is faster than using modulus. I entered into this thinking the answer was obvious, the bitwise operator would win, hands down. Turns out, it ain't so.

Running several loops in varying steps, the most intensive being a consecutive loop from 0 to 1000000 (million) showed that $i%2 was significantly faster than $i&1==0, being about 9% faster in most tests. The results and the script used to verify the results are available at magicode.org.

So, there you go folks, modulus wins.

"The geeks shall inherit the earth." -- Karl Lehenbauer

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