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PHP 8 Programming Tips, Tricks, and Best Practices

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Introduction

Motivation—Why PHP 8 About This Course

Section 1: PHP 8 Tips

Introduction to PHP 8 Tips

Introducing New PHP 8 OOP Features

Using Constructor Property Promotion Working with Attributes Incorporating match Expressions Understanding Named Arguments Exploring New Data Types Improving Code Using Typed Properties Summary: Introducing New PHP 8 OOP Features Quiz: Introducing New PHP 8 OOP Features Challenge: Implementing a Class with PHP 8 Advanced OOP Features Solution: Implementing a Class with PHP 8 Advanced OOP Features

PHP 8's Functional Additions

Variadics Operator Nullsafe Operator Nested Ternary Operator Arrow Functions Uniform Variable Syntax New Array Handling Techniques New String Handling Techniques Securing SQLite Databases with the Authorizer Summary: PHP 8's Functional Additions Quiz: PHP 8's Functional Additions Challenge: Filtering Users in Social Network Data with PHP 8 Solution: Filtering Users in Social Network Data with PHP 8

Taking Advantage of Error-Handling Enhancements

Understanding PHP 8 Error Handling Dealing with Warnings That Are Now Errors Warnings Promoted to Errors in Array Handling Understanding Notices Promoted to Warnings Handling the @ Error Control Operator Summary: Taking Advantage of Error-Handling Enhancements Quiz: Taking Advantage of Error-Handling Enhancements Challenge: Removing Errors with PHP 8 Error-Handling Techniques Solution: Removing Errors with PHP 8 Error-Handling Techniques

Making Direct C Language Calls

Understanding FFI Learning Where to Use FFI Examining the FFI Class Creating FFI Instances Comparing Data Using FFI Using FFI infrastructural methods Using FFI in an Application Working with PHP Callbacks Summary: Making Direct C-Language Calls Quiz: Making Direct C-Language Calls Challenge: Data Manipulation of Foreign Function Interface in PHP Solution: Data Manipulation of Foreign Function Interface in PHP

Section 2: PHP 8 Tricks

Introduction to PHP 8 Tricks

Discovering Potential OOP Backward-Compatibility Breaks

Discovering Core OOP Coding Differences Working with PHP 8 Autoloading Navigating Changes in Magic Methods Handling Changes in Magic Methods Taking Control of Serialization Introducing the Serializable Interface Understanding PHP 8 Expanded Variance Support Handling Standard PHP Library (SPL) Changes Summary: Discovering Potential OOP Backward-Compatibility Breaks Quiz: Discovering Potential OOP Backward-Compatibility Breaks Challenge: Serialize and Unserialize Different Data Structures Solution: Serialize and Unserialize Different Data Structures

Understanding PHP 8 Functional Differences

String Handling Differences Changes in v*prinf(), NULL Length Arguments, and the implode() Function PHP 8 String-to-Numeric Comparison Improvements Differences in Arithmetic, Bitwise, and Concatenation Operations Taking Advantage of Locale Independence Handling Arrays in PHP 8 Mastering Changes in Security Functions and Settings Summary: Understanding PHP 8 Functional Differences Quiz: Understanding PHP 8 Functional Differences Challenge: Manipulating the String and Array with Advanced Methods Solution: Manipulating the String and Array with Advanced Methods

Avoiding Traps When Using PHP 8 Extensions

Understanding the Shift from Resources to Objects Learning about Changes to XML Extensions Avoiding Problems with the Updated mbstring Extension Dealing with Changes to the GD Extension Discovering Changes to the Reflection Extension Working with Other Extension Gotchas Summary: Avoiding Traps When Using PHP 8 Extensions Quiz: Avoiding Traps When Using PHP 8 Extensions Challenge: Performing Data Operations with PHP 8 Extensions Solution: Performing Data Operations with PHP 8 Extensions

Learning about PHP 8's Deprecated or Removed Functionality

Discovering What Has Been Removed from the Core Discovering Other PHP 8 Usage Changes Examining Core Deprecations Working with Removed Functionality in PHP 8 Extensions Deprecated or Removed Security-Related Functionality Summary: PHP 8’s Deprecated or Removed Functionality Quiz: PHP 8’s Deprecated or Removed Functionality Challenge: Formatter and Hash Generators with Updated Functions Solution: Formatter and Hash Generation with Updated Functions

Section 3: Best Practices

Introduction to PHP 8 Best Practices

Mastering PHP 8 Best Practices

Discovering Method Signature Changes Working with the static Return Type Working with Interfaces Understanding PHP 8 Trait Handling Refinements Dealing with Private Methods Controlling Anonymous Class Usage Understanding Changes in Namespaces Summary: Mastering PHP 8 Best Practices Quiz: Mastering PHP 8 Best Practices Challenge: Data Handling Using the PDO Extension and Abstract Methods Solution: Data Handling Using the PDO Extension and Abstract Methods

Improving Performance

Working with the JIT Compiler

Enabling the JIT Compiler

Using the JIT compiler

Speeding Up Array Handling

Implementing Stable Sort

Using Weak References to Improve Efficiency

Summary: Improving Performance

Quiz: Improving Performance

Challenge: Advanced Array Operations with Improved Performance

Solution: Advanced Array Operations with Improved Performance

Migrating Existing PHP Apps to PHP 8

Understanding Development, Staging, and Production Environments Learning how to spot BC breaks before a migration Developing a BC Break Scan Class Performing the Migration Testing and Troubleshooting the Migration Summary: Migrating Existing PHP Apps to PHP 8 Quiz: Migrating Existing PHP Apps to PHP 8

Creating PHP 8 Applications Using Asynchronous Programming

Understanding the PHP Async Programming Model Using the Swoole Extension Using Selected PHP Frameworks in Async Mode Learning About PHP 8.1 Fibers Summary: PHP 8 Applications Using Asynchronous Programming Quiz: PHP 8 Applications Using Asynchronous Programming

Conclusion

Quiz: Improving Performance

Test your understanding of improving performance in PHP 8.

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