Book Image

PHP 7 Data Structures and Algorithms

By : Rahman
5 (1)
Book Image

PHP 7 Data Structures and Algorithms

5 (1)
By: 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)

Different types of linked list

So far, we have dealt with the kind of list known as a singly linked list, or linear linked list. However, there are also several different types of linked lists based on the operations involved:

  • Doubly linked list
  • Circular linked list
  • Multi-linked list

Doubly linked lists

In a doubly linked list, there are two links on each node: one to point to the next node and another one to the previous node. Where the singly linked list is unidirectional, the doubly linked list is bidirectional. We can move forward or backward in the list without any problem. The following image shows a sample doubly linked list. Later, in the Implementing a doubly linked list in PHP section, we will explore how...