We’ve gone through the basics for variables and assignments. With this section we’ll add some more operators and focus on control structures. Control structures alter or affect the programming flow. There are four main control structures we’ll cover: Conditionals, switches, loops, and functions. Loops and functions we’ll cover with the next session. Conditionals The most [...]
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The power of any programming languages starts with variables and operators. Variables in PHP can be almost any word that starts with a “$”. To assign a value to a variable use the “=” operator. For example: $Str=5; or $Str="5". Please note that the value that $Str holds in the previous examples is different. One [...]
PHP is a recursive acronym standing for PHP: Hypertext Processor. PHP executes on the server prior to the web server returning HTML code back to the client server. This guide will not go into HTML in detail, but because of its usage within an HTML environment, HTML will be used. Some specifics will be covered [...]
In the early days of computing each application interfaced directly with the underlying hardware as shown in the diagram to the right. This had the advantage of speed and control. Each application would reserve memory addresses and task the CPU or other hardware devices, like communications ports. As computers developed, the need to handle multiple [...]
