In this article I look how to compare two ordinary arrays (or objects based on array). The problem can be solved fairly easily using a comparison function. It accepts two items, one from each of two arrays you need to compare and returns a result of the comparison. You gather ...

If you have ever tried to obtain a formatted value in PHP, it is likely you did so with one of printf, sprintf of vsprintf functions. In general, these utilities accept a formatting string and one or more arguments. php.net has some good examples and descriptions on how they ...

This article provides two more examples of PHP functions which employ linear recursion. They are min() and max(). I wrote them partly for fun, but also to carry out a basic speed test on a piece of interpreted PHP code, results of which I hoped, would give me some insight into ...

In this article I give a couple of PHP implementations of popular Maths sequences and series. Broadly, each piece of code given returns nth term of a sequence / series. Each of the implementations depends on linear recursion. Each of the functions a is a static methods of class ...