Generates classmap-based include/autoload files for PHP projects, with support for functions and constants.

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0.2.3 2016-12-09 01:47 UTC

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Last update: 2021-02-19 23:07:15 UTC


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


  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:


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';