AI Coding with PHP

AI Tool Ecosystem for PHP

PHP's AI tool ecosystem has improved dramatically with the language's modernization in PHP 8.x. GitHub Copilot and Cursor generate strong Laravel and Symfony code, leveraging the massive amount of open-source PHP on GitHub and Packagist. Claude Code handles modern PHP patterns including enums, fibers, named arguments, and readonly classes accurately. PHPStorm's AI assistant offers deep PHP-specific intelligence with understanding of magic methods and framework internals. The PHP ecosystem presents a unique challenge: AI tools must navigate the stark difference between legacy PHP 5/7 patterns and modern PHP 8.x idioms. Laravel's popularity means it has the best AI support of any PHP framework. WordPress plugin development is well-supported due to the sheer volume of WordPress code in training data, though quality varies. Psalm and PHPStan integration helps validate AI-generated code.

What AI Does Well with PHP

• Generating complete Laravel resource controllers with form request validation, Eloquent queries, and API resource transformations
• Refactoring legacy PHP code (PHP 5/7) to modern PHP 8.x patterns with typed properties, enums, and match expressions
• Creating PHPUnit test suites with data providers, mocking, and database testing with RefreshDatabase trait
• Producing Eloquent models with correct relationship methods, scopes, casts, and accessor/mutator definitions

Tips for AI-Assisted PHP Development

• Use PHP 8+ typed properties and return types to give AI tools better context
• AI tools understand Laravel's Eloquent ORM deeply - describe relationships in natural language
• Leverage AI for generating PHPUnit tests with proper data providers
• AI handles Composer dependency management and autoloading configuration well
• Use AI to refactor legacy PHP code toward modern patterns with type safety

Prompting Tips for PHP

Where AI Struggles with PHP

• AI tools frequently generate PHP code mixing legacy (PHP 5/7) and modern (PHP 8.x) patterns -- such as using array() syntax alongside enums, or missing declare(strict_types=1)
• AI struggles with WordPress's hook system (add_action, add_filter) and often generates plugins with incorrect hook priorities, wrong number of arguments, or missing nonce verification
• AI-generated Laravel code sometimes uses facades and magic methods incorrectly, producing code that appears correct but fails due to wrong container binding or missing service provider registration
• AI tools have difficulty with PHP's many string and array functions that have inconsistent parameter ordering (needle/haystack), leading to subtle argument-order bugs

Laravel API resource with form request validation

A Laravel API controller action with a form request class for validation and an API resource for response formatting -- the bread-and-butter pattern AI tools handle fluently.

<?php

declare(strict_types=1);

namespace App\Http\Controllers\Api;

use App\Http\Requests\StoreArticleRequest;
use App\Http\Resources\ArticleResource;
use App\Models\Article;
use Illuminate\Http\JsonResponse;

class ArticleController extends Controller
{
    public function store(StoreArticleRequest $request): JsonResponse
    {
        $article = Article::create([
            ...$request->validated(),
            'author_id' => $request->user()->id,
            'slug' => str($request->validated('title'))->slug(),
        ]);

        $article->tags()->attach($request->validated('tag_ids', []));

        return ArticleResource::make($article->load('tags', 'author'))
            ->response()
            ->setStatusCode(201);
    }
}

Common Use Cases

• Web applications with Laravel/Symfony
• WordPress plugin and theme development
• E-commerce with Magento/WooCommerce
• API development and CMS backends

Popular PHP Libraries AI Handles Well

Best Practices

Modern PHP with strict types enabled gives AI the best results. Use PHP 8.x features like enums, named arguments, and union types. Follow PSR standards for coding style. AI tools understand Laravel's convention-based architecture deeply, so follow the framework's patterns for optimal AI assistance.

Recommended Tools for PHP

The following AI coding tools offer the best support for PHP development:

• Cursor - AI-first code editor built as a fork of VS Code with deep AI integration for code generation, editing, and chat.
• GitHub Copilot - AI pair programmer by GitHub and Microsoft that provides code suggestions, chat, and autonomous coding agents directly in your editor.
• Claude Code - Anthropic's agentic CLI coding tool that operates directly in your terminal, capable of editing files, running commands, and managing entire coding workflows.
• Cody - AI coding assistant by Sourcegraph that leverages deep codebase understanding and code search to provide context-aware assistance.

FAQ