The PHP Workshop

Spis treści książki

• Preface
  • About the Book
    • About the Chapters
    • Conventions
    • Before You Begin
    • Installing PHP 7.3 (Ubuntu)
    • Installing PHP 7.3 (Mac OS X)
    • Installing PHP 7.3 (Windows)
    • Installing MySQL 5.7 (Ubuntu)
    • Accessing MySQL as Root (Using sudo)
    • Creating a Test User
    • Granting all Privileges on a Test User
    • Installing MySQL Workbench on Ubuntu
    • Installing MySQL 5.7 (Mac OS)
    • Installing MySQL Workbench on Mac OS
    • Installing MySQL 5.7 (Windows)
    • Installing Composer
    • Installing the Insomnia REST Client
    • Installing the Code Bundle
• 1. Introducing PHP
  • Introduction
  • Getting Started with PHP Web Development
    • Built-in Templating Engine
    • PHP in the Interactive Shell
    • Exercise 1.1: Printing Hello World to the Standard Output
    • Exercise 1.2: Printing Hello World by Executing a PHP File
    • Assigning and Using Variables
    • Creating and Assigning Variables to Print Simple Messages on the Web Browser
    • Exercise 1.3: Using Input Variables to Print Simple Strings
    • Exercise 1.4: Using the Built-in Server to Print a String
  • HyperText Markup Language
  • Cascading Style Sheets
    • Exercise 1.5: Creating a Login Form Page Using Bootstrap
    • Exercise 1.6: Printing PHP Code Output between HTML Tags
  • Using the Server Variable
    • Exercise 1.7: Displaying Server Information
    • Other Predefined Variables
    • Assignment by Value and by Reference
    • Exercise 1.8: Assigning a Variable by Reference and Changing its Value
    • Using isset to Check for Variable Declaration
    • Exercise 1.9: Using isset to Check whether a Variable Has Been Set
    • Activity 1.1: Displaying Query Strings in the Browser
  • Summary
• 2. Types and Operators
  • Introduction
  • What are Data Types?
    • Integers
    • Strings
    • Single and Double-Quoted Strings
    • Heredoc and Nowdoc Syntaxes
    • Floats
    • Boolean
    • Exercise 2.1: Using Simple Data Types
    • Arrays
    • Indexed and Associative Arrays
    • Adding and Removing Items from an Array
    • Exercise 2.2: Creating a Multidimensional Array
  • Scalar Types
    • Type Conversion
    • Exercise 2.3: Converting a Boolean to an Integer
    • Exercise 2.4: Converting an Integer to a String
    • Exercise 2.5: Converting Centimeters to Meters
  • Operators and Expressions
    • Arithmetic Operators
    • String Operators
    • Bitwise Operators
    • Assignment Operators
    • Comparison Operators
    • Increment/Decrement Operators
    • Logical Operators
    • Array Operators
    • Conditional Assignment Operators
    • Activity 2.1: Printing the BMI of a User
  • Summary
• 3. Control Statements
  • Introduction
  • Boolean Expressions
  • Boolean Constants
  • Logical Operators
    • The not Operator
    • The and Operator
    • The or Operator
    • The xor Operator
    • Short-Circuit Evaluation and Operator Precedence
    • The Precedence of Logical Operators
      • || versus or
      • && versus and
    • Comparison Operators
  • Branching
    • The if Statement
    • The ifelse Statement
    • Exercise 3.1: Creating a Basic Script to Implement the if...else Test Case
    • Exercise 3.2: Implementing the Nested if...else Structure
    • The Ternary Operator
    • The ifelseifelse Statement
    • Exercise 3.3: Creating a Script Using the if... elseif... else Statement
    • The switch Case
    • Exercise 3.4: Creating a Script to Implement a Switch Case
  • Looping
    • Bounded Loops versus Unbounded Loops
    • The while Loop
    • Exercise 3.5: Printing the Numbers 1 to 10 Using a while Loop
    • The dowhile Loop
    • Exercise 3.6: Converting a while Loop to a do...while Loop
    • The for Loop
    • Exercise 3.7: Using a for Loop to Print the Days of the Week
    • The foreach Loop
    • Exercise 3.8: Using a foreach Loop to Print the Days of the Week
    • Nesting Loops
    • Exercise 3.9: Using Nested foreach Loops
    • The break Statement
    • Exercise 3.10: Using a break Statement to Terminate a Loops Execution
    • The continue Statement
    • Exercise 3.11: Using continue to Skip an Item in a List
    • Alternative Control Syntaxes
    • Using System Variables
    • Activity 3.1: Creating a Movie Listing Script to Print Movies per Director
    • Tips for Control Structures
  • Summary
• 4. Functions
  • Introduction
  • What is a Callable?
    • Exercise 4.1: Using Built-in Functions
    • Types of Callables
  • Language Constructs
  • Introduction to Built-In Functions
    • Finding Built-In Functions
    • Parameters and Return Values
    • Passing Parameters by Reference
    • Passing Scalar Variables by Reference
    • Optional Parameters
    • Exercise 4.2: Working with print_r()
    • A Varying Number of Parameters
    • Flag Parameters
    • Exercise 4.3: Using Built-In Functions with Arrays
  • Introduction to User-Defined Functions
    • Naming Functions
    • Documenting Your Functions
    • Namespaced Functions
    • Pure Functions
    • Scope
    • The $GLOBALS Superglobal Array
    • Exercise 4.4: Using the $GLOBALS array
    • The Single Responsibility Principle
    • The function Keyword
    • Identifier
    • Type Hints
    • The Spread Operator () with Type Hints
    • Parameters in User-Defined Functions
    • Return Types in User-Defined Functions
    • Signature
    • Returning a Value
    • Parameters and Arguments
    • Optional Parameters
    • Parameters Passed by Reference to Our Function
    • Default Values for Parameters
    • Exercise 4.5: Writing a Function that Adds Two Numbers
    • Variable Functions
    • Anonymous Functions
    • Using a Variable from Outside of Scope Inside an Anonymous Function
    • Exercise 4.6: Working with Anonymous Functions
    • Exercise 4.7: Creating Variable Functions
    • Exercise 4.8: Playing with Functions
    • Activity 4.1: Creating a Calculator
  • Summary
• 5. Object-Oriented Programming
  • Introduction
  • The Object-Oriented Approach
    • OOP Concepts
    • Classes
    • Instantiating a Class
    • Class Attributes
    • Class Constants
    • The $this Variable
    • Class Methods
    • Exercise 5.1: Using the Getter and Setter Methods
    • Constructor
    • Destructor
    • Exercise 5.2: Instantiating the Class and Printing the Details
    • Inheritance
    • Exercise 5.3: Implementing Inheritance
    • Access Modifiers
    • Exercise 5.4: Applying Access Modifiers
    • Static Fields and Methods
    • parent:: and self::
    • Exercise 5.5: Applying a Static Member
    • Class Abstraction
    • Exercise 5.6: Implementing an Abstract Class
  • Interfaces
    • Exercise 5.7: Implementing an Interface
    • Abstract Classes versus Interfaces
    • Class Type Hinting Plays a Role in Dependency Injection
  • Overriding
    • Attribute Overriding
    • Method Overriding
    • Exercise 5.8: Overriding an Inherited Method
    • Overloading
    • Attribute Overloading
    • Method Overloading
    • Exercise 5.9: Implementing Attribute and Method Overloading
    • Final Classes and Methods
    • Exercise 5.10: Implementing a Final Class and Methods
  • Traits
    • Exercise 5.11: Implementing Trait
    • Class Autoloading
  • Namespaces
    • Exercise 5.12: Implementing Namespaces
    • Activity 5.1: Building a Student and Professor Object Relationship
  • Summary
• 6. Using HTTP
  • Introduction
  • The Request-Response Cycle of a Web Application
    • A Typical HTTP Request
    • A Typical HTTP Response
    • Request Methods
    • GET HTTP Requests
    • POST HTTP Requests
  • Query Strings
  • PHP Superglobals
    • $_SERVER
    • Exercise 6.1: Dumping the $_SERVER Data
    • $_COOKIE
    • Exercise 6.2: Setting and Reading a Cookie
    • $_SESSION
    • Exercise 6.3: Writing and Reading Data from a Session
    • $_GET
    • Exercise 6.4: Using Query Strings in Web Pages
    • $_POST
    • Exercise 6.5: Sending and Reading POST Data
    • $_FILES
    • Exercise 6.6: Uploading a File and Validating its Type
    • Securing Input and Output Data
    • Best Practices
    • Sanitizing and Validating the User Input
    • Exercise 6.7: Sanitizing and Validating the User Input
    • Escaping the Output
    • Cross-Site Scripting (XSS)
    • Exercise 6.8: Securing against XSS
  • Cross-Site Request Forgery (CSRF)
    • Exercise 6.9: Securing against CSRF
    • Building an Application (Bootstrapping the Examples)
      • web/
      • src/
      • components/
      • handlers/
      • templates/
    • Exercise 6.10: Building an Application: The Home Page
    • Exercise 6.11: Building an Application: The Profile Page and the Login Form
    • Activity 6.1: Creating a Support Contact Form
  • Summary
• 7. Data Persistence
  • Introduction
  • File I/O Handling
    • Reading Files with PHP
    • A Simple File Read
    • Exercise 7.1: A Simple File Read (All at Once)
    • Reading Files with the fread Function
    • Exercise 7.2: Reading Files with the fread Function
    • Benchmark File Reading
    • Exercise 7.3: Benchmark File Reading
    • Reading Files Line by Line
    • Exercise 7.4: Reading Files Line by Line
    • Reading CSV Files
    • Exercise 7.5: Reading CSV Files
    • Downloading a File with PHP
    • Exercise 7.6: Downloading a File
    • Writing a File with PHP
    • Exercise 7.7: Writing to Files
    • Exercise 7.8: Appending Content in Files
    • Other Filesystem Functions
    • Deleting a File with PHP
    • Exercise 7.9: Deleting a File with PHP
    • Moving Files with PHP
    • Exercise 7.10: Creating Directories and Moving Files to the Archive
    • Copying Files Using PHP
    • Exercise 7.11: Copying Files
  • Databases
    • GUI Clients
    • Connecting to MySQL
    • Connecting to MySQL
    • Exercise 7.12: Connecting to MySQL
    • Creating a Database
    • Exercise 7.13: Creating a Database
    • Creating a Table
    • Exercise 7.14: Creating the Table
    • Inserting Data into a MySQL Database Table
    • Exercise 7.15: Inserting Data into a Table
    • SQL Injection
    • Prepared Statements
    • Using Prepared Statements
    • Exercise 7.16: Inserting Data Using Prepared Statements
    • Fetching Data from MySQL
    • Exercise 7.17: Fetching Data from MySQL
    • Updating Records in MySQL
    • Exercise 7.18: Updating Records in MySQL
    • Deleting Records from MySQL
    • Exercise 7.19: Deleting Records from MySQL
    • The Singleton Pattern
    • Activity 7.1: Contact Management Application
  • Summary
• 8. Error Handling
  • Introduction
  • Errors in PHP
    • Handling Errors
    • The Default Error Handler
    • Using a Custom Error Handler
    • Exercise 8.1: Using a Custom Error Handler
    • Exercise 8.2: Logging with the Custom Error Handler
    • Triggering a User-Level Error
    • Exercise 8.3: Triggering Errors
    • Logging Errors at Script Shutdown
    • Exercise 8.4: Logging Fatal Errors at Shutdown
  • Exceptions
    • Basic Usage
    • Exercise 8.5: Implementing Exceptions
    • Custom Exceptions
    • Exercise 8.6: Custom Exceptions
    • Custom Exception Handler
    • Using a Custom Exception Handler
    • Exercise 8.7: Using a Custom Exception Handler
    • Translating Errors to Exceptions
    • Exercise 8.8: Translating Errors to Exceptions
    • Exercise 8.9: Simple Exception Handling
    • Exercise 8.10: Better Usage of Exceptions
    • Activity 8.1: Handling System and User-Level Errors
  • Summary
• 9. Composer
  • Introduction
  • Dependency Management
    • Using Composer
    • Exercise 9.1: Getting Started with Composer
    • Initializing a Project
    • Exercise 9.2: Initializing a Project
    • Requiring Packages
    • Exercise 9.3: Adding Dependencies
  • Semantic Versioning
    • Applying Version Constraints
    • Exercise 9.4: Applying Version Constraints
    • The Lock File
    • Exercise 9.5: Re-Installing Vendor Files
    • Dev Dependencies
    • Exercise 9.6: Installing Development Dependencies
    • Packagist
    • Exercise 9.7: Discovering Packages on Packagist.org
  • Namespaces
    • Autoloading
    • Using Composer Packages
    • Exercise 9.8: Using PSR-4 to Load Classes
    • Exercise 9.9: Implementing Monolog
    • Activity 9.1: Implementing a Package to Generate a UUID
  • Summary
• 10. Web Services
  • Introduction
  • An Example Web Service
    • Selecting Third-Party APIs
    • RESTful Concepts
    • Request Formats
    • Exercise 10.1: JSON Encoding
  • HTTP Headers
    • Authentication and Authorization
    • Manual API Testing
    • Exercise 10.2: Manual API Testing with Insomnia
    • Making a Request with PHP
    • Exercise 10.3: Making a GET Request with Guzzle
    • Exercise 10.4: Sending a POST Request with Headers
    • Activity 10.1: Making Your Own POST Request to httpbin.org
  • Summary
• Appendix
  • 1. Introducing PHP
    • Activity 1.1: Displaying Query Strings in the Browser
  • 2. Types and Operators
    • Activity 2.1: Printing the BMI of a User
  • 3. Control Statements
    • Activity 3.1: Creating a Movie Listing Script to Print Movies per Director
  • 4. Functions
    • Activity 4.1: Creating a Calculator
  • 5. Object-Oriented Programming
    • Activity 5.1: Building a Student and Professor Object Relationship
  • 6. Using HTTP
    • Activity 6.1: Creating a Support Contact Form
  • 7. Data Persistence
    • Activity 7.1: Contact Management Application
  • 8. Error Handling
    • Activity 8.1: Improving the User Experience through the Handling System and User-Level Errors
  • 9. Composer
    • Activity 9.1: Implementing a Package to Generate a UUID
  • 10. Web Services
    • Activity 10.1: Making Your Own POST Request to httpbin.org

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