LR - php in 1 day: php programming for Beginners

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12

PHP

In 1 Day

Ayoub LR

Contents

Chapter 1: Introduction
1.1 What is PHP?

1.2 Why Learn PHP?
Chapter 2: Installing XAMPP
2.1 Configuring php.ini
2. Important Links
3. Coding our first Web Page
Chapter 3: Basic PHP Tasks
1. Displaying Outputs
1. echo
2. print
3. Escaping Characters
2. Duplicating Code
1. include
2. require
3. include_once, require_once
3. Redirecting Users
Chapter 4: Constants, Variables, Data Types and Operators in PHP
4.1 Constants

2. Variables
3. Basic Data Types in PHP
4.4 Type Casting

5. Operators in PHP
1. The Assignment Operator
2. Arithmetic operators
3. Combined Assignment Operators 4.5.4 Increment/Decrement operators

Chapter 5: More Data Types in PHP
1. Strings
1. Commonly used String Functions in PHP 5.2 Using Strings to Represent Dates
2. The strtotime() function
3. The date() function
5.2.3 Setting the timezone
3. Arrays
1. Creating an Array
2. Displaying the Content of Arrays
5.3.3 Adding Elements to Arrays

4. Deleting Elements from Arrays 5. Commonly used Array Functions in PHP

Chapter 6: Control Structures in PHP
1. Comparison operators
2. Logical Operators
3. Control Structures
1. If Statement
2. Ternary Operator
3. Switch Statement
4. For Loop
5. Foreach Loop
6. While Loop
7. Do-while Loop
4.Other Topics in Flow Control
6.4.1 Booleans

2. Break, Continue
3.Alternative Syntax 6.4.4
Displaying HTML code

Chapter 7: Functions
7.1 Defining our own Functions
7.2 Type Declaration
Chapter 8: PHP Superglobals
8.1 PHP Form Handling

1. The isset() function
2.get and $_GET 8.1.3
post and $_POST
8.1.4 Keeping The Values in The Form
8.1.5 Filtering User Input
8.1.6 Cross-Site Scripting
2. $_SESSION
3. $_COOKIE
Chapter 9: Object-Oriented Programming 9.1 What is OOP?
9.2 Writing our own class
9.3 Creating an Object
9.4 Accessing Class Members
9.5 Access Modifiers
6. Getter and Setter
7.Printing a String Representation of the Object Chapter 10: Inheritance

10.1 Writing the Child Classes 10.2
Creating a Child Class Object 10.3
Access Modifiers Revisited 10.4
Overriding

Chapter 11: Interacting with a Database
11.1 The PDO library
2. Connecting to the Database
3. SQL Injection
4.Prepared Statements 11.5
Putting it all Together
Chapter 12: Managing Errors and Exceptions
12.1 Handling Exceptions
1. What is an exception?
2. try-catch-finally
3. Throwing Exceptions
4. Exception Handler
2.Handling Errors 12.2.1
What are errors?
2. Error Reporting Settings in PHP
3.Error Handler and Shutdown Function 12.3 Putting it All Together
Chapter 13: Project
1. About the Project
2.Acknowledgements and Requirements 13.3 Structure of the Project
13.4 Creating Database, User Account and Tables
13.5 Editing The classes Folder
1. Helper.php
2. Database.php
3. BlogReader.php
4. BlogMember.php 5. Admin.php
6.Editing The process Folder 13.6.1 p-index.php
2. p-admin.php
3. p-signup.php
4. p-write.php
5. p-read.php
6.messagecard.php 13.7 The includes Folder
8.Editing The phpproject Folder 13.8.1 UI_include.php
13.8.2 User Interface Files
9. Running the Code

Chapter 1: Introduction
Hi :

Thank you for picking up this book. Im so glad you chose this book, and I sincerely hope the book can help you master PHP and introduce you to the world of dynamic web programming.

In this book, well be covering most of the major topics in PHP. These topics are carefully chosen to give you a broad exposure to PHP while not overwhelming you with unnecessary details. Well also be building a dynamic website together at the end of the book.

Excited?
Before we dive into PHP proper, note that this book requires you to have a basic understanding of HTML and MySQL.

If you are not familiar with these languages, you are encouraged to refer to my books Learn CSS (with HTML 5) in One Day and Learn It Well and Learn SQL (using MySQL) in One Day and Learn it Well.

If you are familiar, lets move on.
1.1 What is PHP?

PHP is a general-purpose programming language used mostly for web development. Created by Rasmus Lerdorf in 1994, it allows developers to create dynamic web pages with ease.

For instance, developers can create a form in HTML and process it using PHP. Depending on the inputs entered into the form, developers can use PHP to display different outputs to users.

Most of the time, PHP is used as a server-side language. This means that PHP code is not processed on the users computer (also known as a client).

In other words, when you access a PHP page on your browser, the code is not processed on your computer. Instead, your browser sends a request to a web server, which then processes the code and returns the result to the browser in the form of a web page.
More often than not, this web server is a remote computer where the PHP files are stored. For the web server to process PHP code, a special software known as the PHP interpreter needs to be installed.

Well learn to set up our web server and install the PHP interpreter using a free software called XAMPP in the next chapter.
1.2 Why Learn PHP?
There are many reasons for learning PHP.

Firstly, PHP is one of the most widely used web programming languages and is used in many popular content management systems such as Wordpress, Drupal and Joomla. As such, the demand for PHP programmers is high. If you plan on working as a freelance developer, PHP is an essential skill to have.

Next, PHP is designed to be beginner-friendly and easy to learn. In addition, due to the popularity of the language, if you run into any issues with your PHP code, you can find help easily. A simple search on the internet will likely help you resolve most of the problems you face.

Last but not least, the syntax of PHP is very similar to other programming languages such as Java or C. Once you are familiar with PHP, youll find it much easier to master other languages.

Ready to get started? Lets do it!
Chapter 2: Installing XAMPP

As mentioned in the previous chapter, well learn to set up our web server and install the PHP interpreter in this chapter. In addition, as well be using PHP to interact with a database later in this book, we need to set up our database server too.

To set up our web and database servers, we need to install three software: the Apache web server, the PHP interpreter and the MarieDB database server.

Installing all three software can be tedious if we do them one by one. Fortunately, some kind folks at Apache Friends created a free package that contains all the software we need. This package is known as XAMPP, which stands for Cross-platform (X), Apache web server (A), MarieDB database server (M), PHP (P) and Perl (P).

The MarieDB database server is a community-developed fork of the MySQL server. Although M in XAMPP officially stands for MarieDB, youll see that XAMPP labels the database server as MySQL in the software. Well follow this label and refer to the database server as MySQL in our book.

For detailed instructions on installing XAMPP and using it to set up our servers, check out https://learncodingfast.com/how-to-install-xamppand-brackets.

Instructions are available on the accompanying site of this book so that whenever there are any changes to XAMPP, you can find the updated instructions on the site. This will ensure that youll always get the latest installation instructions.

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