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)

Using PHP SplDoublyLinkedList

The PHP Standard PHP Library (SPL) has an implementation of a doubly linked list, which is known as SplDoublyLinkedList. If we are using the built-in class, we do not need to implement the doubly linked list ourselves. The doubly linked list implementation actually works as a stack and queue as well. The PHP implementation of the doubly linked list has lots of additional functionalities. Here are some of the common features of SplDoublyLinkedList:

Method

Description

Add

Adds a new node in a specified index

Bottom

Peeks a node from beginning of the list

Count

Returns the size of the list

Current

Returns the current node

getIteratorMode

Returns the mode of iteration

setIteratorMode

Sets the mode of iteration. For example, LIFO, FIFO, and so on

Key

Returns the current node index

next

Moves to the...