README

Generates class-map based autoloaders for PHP projects, with support for functions and constants.

Usage

1. Include the composer package:

   php composer.phar require --dev jesseschalken/autoload-generator
   

2. Run ./vendor/bin/php-generate-autoload <outfile> [<files>...]

   For example, if your project has all it's source files in a src/ directory, you can do:

   ./vendor/bin/php-generate-autoload src/autoload.php
   

   and then use src/autoload.php as the entrypoint for your project.

   See ./vendor/bin/php-generate-autoload --help for more info.

3. Update composer.json to point to your autoloader, if applicable. For example:

   "autoload": {
       "files": ["src/autoload.php"]
   }
   

How it works

php-generate-autoload parses all PHP files using nikic/PHP-Parser and creates a map from class names to file paths to be used in an autoloader registered with spl_autoload_register(). Any files containing global function or constant definitions are included directly.

For example, consider a project with three files src/Foo.php, src/Bar.php and src/lots of classes.php containing classes, src/functions.php containing functions and src/constants.php containing constants.

After running

./vendor/bin/php-generate-autoload src/autoload.php

src/autoload.php would contain something like:

<?php

spl_autoload_register(function ($class) {
  static $map = array (
  'Project\\Foo' => 'Foo.php',
  'Project\\Bar' => 'Bar.php',
  'Project\\Class1' => 'lots of classes.php',
  'Project\\Class2' => 'lots of classes.php',
  'Project\\Class3' => 'lots of classes.php',
);

  if (isset($map[$class])) {
    require_once __DIR__ . "/{$map[$class]}";
  }
}, true, false);

require_once __DIR__ . '/constants.php';
require_once __DIR__ . '/functions.php';