PHP & MySQL Novice to Ninja: 入门指南(6th Edition) PDF原版

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"PHP & MySQL Novice to Ninja Get Up to Speed With PHP the Easy Way(6th) 是一本针对初学者的指南，旨在帮助读者快速掌握PHP和MySQL技术，构建自己的强大Web应用程序。这本书由Tom Butler和Kevin Yank合著，第六版在2017年由SitePoint Pty Ltd出版。" 本书内容涵盖了从基础到进阶的PHP和MySQL知识，旨在让初学者能够快速上手。PHP是一种广泛用于Web开发的服务器端脚本语言，而MySQL则是一种流行的关系型数据库管理系统，两者结合使用可以创建动态、交互式的网站和应用。在PHP部分，读者将学习如何安装和配置PHP环境，理解基本语法，包括变量、条件语句、循环、函数等。此外，还会有关于类和对象的面向对象编程（OOP）概念，以及错误处理和调试技巧。随着深入，还将探讨文件处理、会话管理、表单处理和电子邮件发送等实际应用。在MySQL部分，读者将学习如何设计数据库，使用SQL（结构化查询语言）来创建、查询、更新和删除数据。这包括理解数据类型、创建表、使用索引、进行查询优化，以及执行复杂的JOIN操作。同时，书中还会介绍如何在PHP中安全地连接和操作MySQL数据库，防止SQL注入等安全性问题。除此之外，书中可能还包含Web开发的最佳实践、版本控制系统的使用（如Git）、部署策略和性能优化等内容。每章都配有实例和练习，帮助读者巩固所学知识，并鼓励实践操作。本书适合对Web开发感兴趣，尤其是对PHP和MySQL感兴趣的初学者。通过阅读和实践，读者将逐步从新手成长为熟练的开发者，有能力构建自己的Web应用程序。然而，值得注意的是，书中所有的信息虽然经过了精心检查，但不提供任何明示或暗示的保证，作者和出版社不承担因书中信息或教程导致的直接或间接损害的责任。 "PHP & MySQL Novice to Ninja"是一本全面的教程，无论你是打算自学还是在指导下学习，都能从中获取丰富的知识和实践经验，踏上成为Web开发“忍者”的旅程。

Preface

It was 1998, I was twelve, and my parents had just bought the family our rst

modern PC. It wasn’t long before I had gured out how to change the code for one

of my favorite rst-person shooter games—little things like making the rocket

launcher re a hundred rockets a second instead of one, then having it re a

hundred rockets in every direction … and promptly crashing the game. I was

hooked, and I’ve been programming ever since.

The game was multiplayer. Other people had also discovered how to change the

code, and the arms race quickly escalated. Someone would re a hundred rockets

at me. I’d have a script ready that would instantly build a wall right in front of me

to block them all.

My opponent would spawn a dozen land mines underneath me. I’d turn off the

gravity, then jump, soaring away from the impending explosion. Everyone could

y. It got to the point where it was no longer fun. You’d enter a game and

someone had written a script to teleport you to the other side of the map, kill you

instantly and force you to respawn, repeating the process a dozen times a second.

They’d freeze your controls too, of course.

We discovered ways to block all this, but by the end it was a stalemate. Whoever

managed to enter the game rst could take complete control of it, and no matter

how good your scripts were, there was nothing you could do. It was fun while it

lasted.

That’s how I learned the basics of coding, and that the only limit is your own

imagination and creativity. During that time, I’d also taught myself HTML, and

had my own website where I shared some of my game hacking techniques and

scripts. No, the website is not still up. Yes, it was terrible, full of bad grammar

and cheesy animations (which was the style at the time, I promise!).

By 2000, I had taught myself the basics of PHP/MySQL and was running a

website for a group of fellow gamers. I wrote some crude PHP scripts for posting

news on the website, as well as polls, and even a script for handling our mini-

tournament rankings and xtures.

Preface xv

After that, I moved onto writing desktop applications in a horrible language

called Delphi, writing tools that aided people in modding various games. I

graduated from University in 2007 with a degree in Software Engineering, worked

for various companies as a PHP developer, and these days I’m back at the

University studying for a PhD and working as a lecturer, spreading my passion for

programming.

I’m 31 now, and I’ve been programming for more of my life than not. It’s fun, it’s

something I thoroughly enjoy doing. I’m writing this book to share my knowledge

with you and help you steer clear of some traps that are easy to fall into.

Learning to code is very enjoyable and rewarding. You can watch your program

come alive as you build it. However, it can also be an incredibly frustrating

experience. In this book, I’m going to try to use my own experience to give you a

smoother ride than I and a lot of developers have had. I can steer you in the right

direction from the start.

Before I introduce you to any code, I’m going to give you some general advice

about programming and learning to code which I give to all my students.

Who Should Read This Book

This book is aimed at intermediate and advanced web designers looking to make

the leap into server-side programming. You’ll be expected to be comfortable with

simple HTML, as I’ll make use of it without much in the way of explanation. No

knowledge of Cascading Style Sheets (CSS) or JavaScript is assumed or required,

but if you do know JavaScript, you’ll nd it will make learning PHP a breeze,

since these languages are quite similar.

By the end of this book, you can expect to have a grasp of what’s involved in

building a modern PHP website, the basics of PHP, and tried and tested

techniques that are used by developers today.

Programming Has Changed

As a novice developer starting now, there’s a lot more you need to know before

you can publish a website than someone who was building a website in 2001.

xvi PHP & MySQL: Novice to Ninja, 6th Edition

When I started, it was a much simpler time. For example, website security wasn’t

much of a consideration. Unless you were a bank or a company taking credit card

payments, there was very little chance anyone would target your site.

These days, however, every single website is constantly bombarded by bots and

scripts specically looking to exploit even the smallest doors you may have left

open.

The way PHP scripts are written has changed dramatically as well—certainly for

the better. It’s now much, much easier to download and use someone else’s code

in your own project. The downside to this is that you need a much broader

understanding of programming concepts before you can do anything useful.

To keep up with the competition, and with the needs of more demanding

projects, PHP and MySQL have also had to evolve. PHP is now a far more

intricate and powerful language than it was back in 2001, and MySQL is a vastly

more complex and capable database. Learning PHP and MySQL today opens up a

lot of doors that would have remained closed to the PHP and MySQL experts of

2001.

That’s the good news. The bad news is that, in the same way that a butter knife is

easier to gure out than a Swiss army knife (and less likely to cause self-injury!),

all these dazzling new features and improvements have indisputably made PHP

and MySQL more difcult for beginners to learn.

It Takes 10,000 Hours to Become an Expert

The science behind this statement is questionable, but the sentiment is correct.

Programming is a skill, and it’s incredibly difcult to master. Don’t expect to

become procient overnight. By the end of this book, you’ll have a good

understanding of PHP, but there’s always more to learn, regardless of the level

you’re at.

Having said that, in programming a little knowledge can go a long way. You’ll be

surprised how much you can do with just a few tools at your disposal!

You’ll nd that, after you’ve learned the very basics, you can achieve almost

anything you want. There’ll be very little you can’t do, even though you only

Preface xvii

know a fraction of the programming concepts that are out there. The more

advanced concepts are about making your code more efcient, quicker and easier

to write, and much simpler to build on top of.

Resist the Temptation to Skip Ahead

This is one I reiterate time and time again for my students who miss lectures.

Programming concepts build on top of each other. For the most part, you need to

learn the earlier concepts before you can move on to the next one. If you try to

move too fast, you’ll get needlessly confused and make it more difcult for

yourself.

There aren’t many programming concepts that exist in isolation, so if you get

stuck, it’s often a result of not fully understanding an earlier concept. Don’t be

afraid to go back and give yourself a refresher on what you think you already

know from before. It’s usually quicker overall than struggling and trying to press

forward when you get stuck!

The Concorde Fallacy

In the late 1970s, the British and French governments continued to fund the

Concorde aircraft even though it was losing vast amounts of money. Their

reasoning was that they had already spent so much on the project that, if they

scrapped it, they’d lose everything they had invested so far. Of course, they

eventually lost considerably more because they kept throwing money at it. If they

had stopped sooner, they would have saved a lot of money in the long run. This

is often referred to as the “Concorde fallacy”. There are times when it’s better to

cut your losses than keep working on a failed project!

There will come a time when you’ve spent hours on something and it’s just not

working. When this happens, take a step back and try to solve the problem in a

different way. Use some of the alternative tools you have at your disposal. The

solution might not be as elegant, but once you have it working you can tweak it.

Never be afraid to scrap everything and start again. When you’re starting out,

you’ll end up writing a lot of code, trying to t it into what you’ve done before,

xviii PHP & MySQL: Novice to Ninja, 6th Edition

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PHP & MySQL Novice to Ninja: 入门指南(6th Edition) PDF原版

《PHP & MySQL: Novice to Ninja, 6th Edition》- 2017 英文原版

PHP & MySQL Novice to Ninja 6th Edition

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