Book Image

PHP 7 Data Structures and Algorithms

By : Mizanur Rahman
5 (1)
Book Image

PHP 7 Data Structures and Algorithms

5 (1)
By: Mizanur Rahman

Overview of this book

PHP has always been the the go-to language for web based application development, but there are materials and resources you can refer to to see how it works. Data structures and algorithms help you to code and execute them effectively, cutting down on processing time significantly. If you want to explore data structures and algorithms in a practical way with real-life projects, then this book is for you. The book begins by introducing you to data structures and algorithms and how to solve a problem from beginning to end using them. Once you are well aware of the basics, it covers the core aspects like arrays, listed lists, stacks and queues. It will take you through several methods of finding efficient algorithms and show you which ones you should implement in each scenario. In addition to this, you will explore the possibilities of functional data structures using PHP and go through advanced algorithms and graphs as well as dynamic programming. By the end, you will be confident enough to tackle both basic and advanced data structures, understand how they work, and know when to use them in your day-to-day work
Table of Contents (14 chapters)

Understanding divide-and-conquer technique for sorting

So far, we have explored the sorting option with a full list of numbers. As a result, we had a big list of numbers to compare every time. This can be solved if we can somehow make the list smaller. The divide-and-conquer method can be very helpful for us. With this method, we will divide a problem into two or more subproblems or sets, and then solve the smaller problems before combining all those results from the subproblems to get the final result. This is what is known as divide-and-conquer.

The divide-and-conquer method can allow us to solve our sorting problems efficiently and reduce the complexity of our algorithm. Two of the most popular sorting algorithms are merge sort and quick sort, which apply the divide-and-conquer algorithm to sort a list of items, and hence, they are considered to be the best sorting algorithms...