Code Generator

A code generator is a tool or library that automates the creation of repetitive, boilerplate, or complex code based on predefined templates, configurations, best practices or rules. The goal is to save time, reduce human error, and ensure consistency in the codebase.

PHP code generators are widely used in:

  • Scaffolding, that is generating CRUD controllers, models, and views

  • API development that is generating API endpoints and documentation

  • Database interactions generating ORM classes or PHP code from schema

  • Testing, that is generating test cases

  • Caching, that is replacing complex build up with inlined code

  • Framework-specific code, that is generating Lumen/Laravel migrations or seeders

Code generators are a good choice to speed up creation or update of repeatable code writes. They are not adapted when the code needs to be customized or adapted to a specific circumstance.

Code generators are based on custom templating or facilities that generates arbitrary code using an object-oriented interface.

<?php

    use Laminas\Code\Generator\ClassGenerator;
    use Laminas\Code\Generator\MethodGenerator;
    use Laminas\Code\Generator\FileGenerator;

    $class = new ClassGenerator('UserDto');
    $class->addProperty('name', null, ClassGenerator::FLAG_PRIVATE);
    $constructor = new MethodGenerator('__construct', ['string $name'], MethodGenerator::FLAG_PUBLIC);
    $constructor->setBody('$this->name = $name;');
    $class->addMethod($constructor);
    $file = new FileGenerator();
    $file->setClass($class);
    file_put_contents('UserDto.php', $file->generate());

?>

Related : Scaffolding, Template, Object Relational Mapping (ORM)

Related packages : laminas/laminas-code