PHP — The Web Scripting Language Powering Much of the Internet

What it is

PHP is a general-purpose scripting language widely used for server-side web development. It powers major platforms including WordPress, Laravel, Symfony, Drupal, and Magento. PHP 8.x introduced significant improvements: JIT compilation for performance, fibers for async programming, enums, readonly properties, union and intersection types, and match expressions.

PHP is for web developers building server-rendered applications, REST APIs, and content management systems. Despite newer alternatives, PHP remains one of the most deployed server-side languages, with active development and a large ecosystem of frameworks and libraries.

How it saves time or tokens

PHP's mature ecosystem means most common web development tasks have well-tested solutions. Frameworks like Laravel provide authentication, ORM, queue management, caching, and routing out of the box. Composer manages dependencies. PHP 8.x's type system improvements catch bugs at development time rather than production. For AI-assisted development, PHP's straightforward syntax and abundant documentation mean AI coding tools generate accurate PHP code reliably.

How to use

1. Install PHP 8.x via your system package manager or use a version manager like asdf or brew.
2. Use Composer for dependency management: composer init in your project directory.
3. Choose a framework (Laravel, Symfony) or use plain PHP for simple scripts and APIs.

Example

<?php
// Modern PHP 8.x features
enum Status: string {
    case Active = 'active';
    case Inactive = 'inactive';
}

readonly class User {
    public function __construct(
        public string $name,
        public string $email,
        public Status $status = Status::Active,
    ) {}
}

function greet(User $user): string {
    return match($user->status) {
        Status::Active => "Welcome back, {$user->name}",
        Status::Inactive => "Account suspended: {$user->name}",
    };
}

$user = new User('Alice', 'alice@example.com');
echo greet($user); // Welcome back, Alice

Related on TokRepo

• AI tools for coding -- developer tools enhanced with AI
• AI tools for web scraping -- PHP is commonly used for web scraping scripts

Common pitfalls

• Using outdated PHP patterns from the PHP 5 era. Modern PHP 8.x supports strict typing, enums, readonly classes, and fibers. Write modern PHP and leverage the type system.
• Not using Composer for dependency management. Manual include/require chains lead to autoloading issues and version conflicts. Composer with PSR-4 autoloading is the standard.
• Ignoring security basics: always use prepared statements for database queries, validate and sanitize all user input, and use password_hash/password_verify for authentication.