PHP Variables and constants
Variables introduction
Variables are used by programmers to store values and to refer to those values in code. Variables in PHP need not be defined. Variable types also do not exist although variable scope does. All variables begin with a $ sign. Variable names can contain numbers, letters and underscores. Variable names can only begin with letters or underscores. PHP variables are case sensitive. For ex: $a is different from $A. Below are given some examples of valid variable names:
Standards based coding is easy
Coding according to w3c standards is a major selling point for website designers these days. But how hard is it really? Consider some of the differences between valid XHTML transitional and the usual sloppy HTML coding:
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PHP introduction, code delimiters, comments and statements
Introduction
PHP Hypertext Preprocessor (PHP) is the most popular server-side scripting language on the world wide web. This guide is designed to introduce programmers familiar with other programming languages to PHP.
This guide will take the form of a series of posts that will cover PHP from the basics to intermediate level. In this post I will cover code delimiters, comments and PHP statements.
CSS button hovers without the lag
One of the best features of css is the ability to perform button hovers without java script. By button hovers I mean creating links that have different background images based on whether the mouse pointer is over the link or not. With CSS this is as simple as setting different background images for the a tag and the a:hover pseudo class:
Search engine optimization basics
Search engines are used by all netizens to find useful content. Search Engine Optimization or SEO is the art of developing websites that enjoy a good position on search engine results pages. Website designers and developers are keen to see their websites succeed. Optimizing thier websites for search engine traffic can really help improve their website’s visibility. In this post I examine some of the key factors that affect search engine rankings. Read more »»