-vendor/
| -vendor_name/
| | -package_name/
| | | -src/
| | | | -ClassName.php       # Vendor_Name\Package_Name\ClassName
| | | -tests/
| | | | -ClassNameTest.php   # Vendor_Name\Package_Name\ClassNameTest

{
   "require": {
     "phpunit/phpunit":"~6.0",
   }
 }

<?php
  define('LARAVEL_START', microtime(true));
  require __DIR__ . '/../vendor/autoload.php';

<?php
  require_once __DIR__ . '/composer' . '/autoload_real.php';
  return ComposerAutoloaderInit7b790917ce8899df9af8ed53631a1c29::getLoader();

<?php
    public static function getLoader()
    {
      if (null !== self::$loader) {
          return self::$loader;
      }
      spl_autoload_register(
        array('ComposerAutoloaderInit7b790917ce8899df9af8ed53631a1c29', 'loadClassLoader'), true, true
      );
      self::$loader = $loader = new \Composer\Autoload\ClassLoader();
      spl_autoload_unregister(
        array('ComposerAutoloaderInit7b790917ce8899df9af8ed53631a1c29', 'loadClassLoader')
      );
      $useStaticLoader = PHP_VERSION_ID >= 50600 && !defined('HHVM_VERSION');
      if ($useStaticLoader) {
          require_once __DIR__ . '/autoload_static.php';
          call_user_func(
          \Composer\Autoload\ComposerStaticInit7b790917ce8899df9af8ed53631a1c29::getInitializer($loader)
          );
      } else {
          $map = require __DIR__ . '/autoload_namespaces.php';
          foreach ($map as $namespace => $path) {
              $loader->set($namespace, $path);
          }
          $map = require __DIR__ . '/autoload_psr4.php';
          foreach ($map as $namespace => $path) {
              $loader->setPsr4($namespace, $path);
          }
          $classMap = require __DIR__ . '/autoload_classmap.php';
          if ($classMap) {
              $loader->addClassMap($classMap);
          }
      }
      /***********************注冊自動(dòng)加載核心類對(duì)象********************/
      $loader->register(true);
      /***********************自動(dòng)加載全局函數(shù)********************/
      if ($useStaticLoader) {
          $includeFiles = Composer\Autoload\ComposerStaticInit7b790917ce8899df9af8ed53631a1c29::$files;
      } else {
          $includeFiles = require __DIR__ . '/autoload_files.php';
      }
      foreach ($includeFiles as $fileIdentifier => $file) {
          composerRequire7b790917ce8899df9af8ed53631a1c29($fileIdentifier, $file);
      }
      return $loader;
    }

<?php
  if (null !== self::$loader) {
      return self::$loader;
  }

<?php
  /***********************獲得自動(dòng)加載核心類對(duì)象********************/
  spl_autoload_register(
    array('ComposerAutoloaderInit7b790917ce8899df9af8ed53631a1c29', 'loadClassLoader'), true, true
  );
  self::$loader = $loader = new \Composer\Autoload\ClassLoader();
  spl_autoload_unregister(
    array('ComposerAutoloaderInit7b790917ce8899df9af8ed53631a1c29', 'loadClassLoader')
  );

<?php
public static function loadClassLoader($class)
{
    if ('Composer\Autoload\ClassLoader' === $class) {
        require __DIR__ . '/ClassLoader.php';
    }
}

<?php
  /***********************初始化自動(dòng)加載核心類對(duì)象********************/
  $useStaticLoader = PHP_VERSION_ID >= 50600 && !defined('HHVM_VERSION');
  if ($useStaticLoader) {
     require_once __DIR__ . '/autoload_static.php';
     call_user_func(
       \Composer\Autoload\ComposerStaticInit7b790917ce8899df9af8ed53631a1c29::getInitializer($loader)
     );
  } else {
      $map = require __DIR__ . '/autoload_namespaces.php';
      foreach ($map as $namespace => $path) {
         $loader->set($namespace, $path);
      }
      $map = require __DIR__ . '/autoload_psr4.php';
      foreach ($map as $namespace => $path) {
         $loader->setPsr4($namespace, $path);
      }
      $classMap = require __DIR__ . '/autoload_classmap.php';
      if ($classMap) {
          $loader->addClassMap($classMap);
      }
    }

<?php
  class ComposerStaticInit7b790917ce8899df9af8ed53631a1c29{
     public static $files = array(...);
     public static $prefixLengthsPsr4 = array(...);
     public static $prefixDirsPsr4 = array(...);
     public static $prefixesPsr0 = array(...);
     public static $classMap = array (...);
    public static function getInitializer(ClassLoader $loader)
    {
      return \Closure::bind(function () use ($loader) {
          $loader->prefixLengthsPsr4
                          = ComposerStaticInit7b790917ce8899df9af8ed53631a1c29::$prefixLengthsPsr4;
          $loader->prefixDirsPsr4
                          = ComposerStaticInit7b790917ce8899df9af8ed53631a1c29::$prefixDirsPsr4;
          $loader->prefixesPsr0
                          = ComposerStaticInit7b790917ce8899df9af8ed53631a1c29::$prefixesPsr0;
          $loader->classMap
                          = ComposerStaticInit7b790917ce8899df9af8ed53631a1c29::$classMap;
      }, null, ClassLoader::class);
  }

<?php
  public static $classMap = array (
      'App\\Console\\Kernel'
              => __DIR__ . '/../..' . '/app/Console/Kernel.php',
      'App\\Exceptions\\Handler'
              => __DIR__ . '/../..' . '/app/Exceptions/Handler.php',
      'App\\Http\\Controllers\\Auth\\ForgotPasswordController'
              => __DIR__ . '/../..' . '/app/Http/Controllers/Auth/ForgotPasswordController.php',
      'App\\Http\\Controllers\\Auth\\LoginController'
              => __DIR__ . '/../..' . '/app/Http/Controllers/Auth/LoginController.php',
      'App\\Http\\Controllers\\Auth\\RegisterController'
              => __DIR__ . '/../..' . '/app/Http/Controllers/Auth/RegisterController.php',
  ...)

<?php
  public static $prefixLengthsPsr4 = array(
      'p' => array (
        'phpDocumentor\\Reflection\\' => 25,
    ),
      'S' => array (
        'Symfony\\Polyfill\\Mbstring\\' => 26,
        'Symfony\\Component\\Yaml\\' => 23,
        'Symfony\\Component\\VarDumper\\' => 28,
        ...
    ),
  ...);
  public static $prefixDirsPsr4 = array (
      'phpDocumentor\\Reflection\\' => array (
        0 => __DIR__ . '/..' . '/phpdocumentor/reflection-common/src',
        1 => __DIR__ . '/..' . '/phpdocumentor/type-resolver/src',
        2 => __DIR__ . '/..' . '/phpdocumentor/reflection-docblock/src',
    ),
       'Symfony\\Polyfill\\Mbstring\\' => array (
        0 => __DIR__ . '/..' . '/symfony/polyfill-mbstring',
    ),
      'Symfony\\Component\\Yaml\\' => array (
        0 => __DIR__ . '/..' . '/symfony/yaml',
    ),
  ...)

<?php
    'Symfony\\Polyfill\\Mbstring\\' => 26,

<?php
  'Symfony\\Polyfill\\Mbstring\\' => array (
              0 => __DIR__ . '/..' . '/symfony/polyfill-mbstring',
          )

<?php
    // PSR0 標(biāo)準(zhǔn)
    $map = require __DIR__ . '/autoload_namespaces.php';
    foreach ($map as $namespace => $path) {
       $loader->set($namespace, $path);
    }
    // PSR4 標(biāo)準(zhǔn)
    $map = require __DIR__ . '/autoload_psr4.php';
    foreach ($map as $namespace => $path) {
       $loader->setPsr4($namespace, $path);
    }
    $classMap = require __DIR__ . '/autoload_classmap.php';
    if ($classMap) {
       $loader->addClassMap($classMap);
    }

<?php
    return array(
    'XdgBaseDir\\'
        => array($vendorDir . '/dnoegel/php-xdg-base-dir/src'),
    'Webmozart\\Assert\\'
        => array($vendorDir . '/webmozart/assert/src'),
    'TijsVerkoyen\\CssToInlineStyles\\'
        => array($vendorDir . '/tijsverkoyen/css-to-inline-styles/src'),
    'Tests\\'
        => array($baseDir . '/tests'),
    'Symfony\\Polyfill\\Mbstring\\'
        => array($vendorDir . '/symfony/polyfill-mbstring'),
    ...
    )

<?php
    public function setPsr4($prefix, $paths)
    {
        if (!$prefix) {
            $this->fallbackDirsPsr4 = (array) $paths;
        } else {
            $length = strlen($prefix);
            if ('\\' !== $prefix[$length - 1]) {
                throw new \InvalidArgumentException(
                  "A non-empty PSR-4 prefix must end with a namespace separator."
                );
            }
            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
            $this->prefixDirsPsr4[$prefix] = (array) $paths;
        }
    }

<?php
public static $classMap = array (
    'App\\Console\\Kernel'
        => __DIR__ . '/../..' . '/app/Console/Kernel.php',
    'App\\Exceptions\\Handler'
        => __DIR__ . '/../..' . '/app/Exceptions/Handler.php',
    ...
)

<?php
    public function addClassMap(array $classMap)
    {
        if ($this->classMap) {
            $this->classMap = array_merge($this->classMap, $classMap);
        } else {
            $this->classMap = $classMap;
        }
    }

public static function getLoader()
 {
    /***************************經(jīng)典單例模式********************/
    if (null !== self::$loader) {
        return self::$loader;
    }
    /***********************獲得自動(dòng)加載核心類對(duì)象********************/
    spl_autoload_register(array('ComposerAutoloaderInit
    7b790917ce8899df9af8ed53631a1c29', 'loadClassLoader'), true, true);
    self::$loader = $loader = new \Composer\Autoload\ClassLoader();
    spl_autoload_unregister(array('ComposerAutoloaderInit
    7b790917ce8899df9af8ed53631a1c29', 'loadClassLoader'));
    /***********************初始化自動(dòng)加載核心類對(duì)象********************/
    $useStaticLoader = PHP_VERSION_ID >= 50600 && 
    !defined('HHVM_VERSION');
    if ($useStaticLoader) {
        require_once __DIR__ . '/autoload_static.php';
        call_user_func(\Composer\Autoload\ComposerStaticInit
        7b790917ce8899df9af8ed53631a1c29::getInitializer($loader));
    } else {
        $map = require __DIR__ . '/autoload_namespaces.php';
        foreach ($map as $namespace => $path) {
            $loader->set($namespace, $path);
        }
        $map = require __DIR__ . '/autoload_psr4.php';
        foreach ($map as $namespace => $path) {
            $loader->setPsr4($namespace, $path);
        }
        $classMap = require __DIR__ . '/autoload_classmap.php';
        if ($classMap) {
            $loader->addClassMap($classMap);
        }
    }
    /***********************注冊自動(dòng)加載核心類對(duì)象********************/
    $loader->register(true);
    /***********************自動(dòng)加載全局函數(shù)********************/
    if ($useStaticLoader) {
        $includeFiles = Composer\Autoload\ComposerStaticInit
        7b790917ce8899df9af8ed53631a1c29::$files;
    } else {
        $includeFiles = require __DIR__ . '/autoload_files.php';
    }
    foreach ($includeFiles as $fileIdentifier => $file) {
        composerRequire
        7b790917ce8899df9af8ed53631a1c29($fileIdentifier, $file);
    }
    return $loader;
}

public function register($prepend = false)
{
    spl_autoload_register(array($this, 'loadClass'), true, $prepend);
}

public function loadClass($class)
    {
        if ($file = $this->findFile($class)) {
            includeFile($file);
            return true;
        }
    }

if ($useStaticLoader) {
    $includeFiles = Composer\Autoload\ComposerStaticInit7b790917ce8899df9af8ed53631a1c29::$files;
} else {
    $includeFiles = require __DIR__ . '/autoload_files.php';
}
foreach ($includeFiles as $fileIdentifier => $file) {
    composerRequire7b790917ce8899df9af8ed53631a1c29($fileIdentifier, $file);
}

public static $files = array (
'0e6d7bf4a5811bfa5cf40c5ccd6fae6a' => __DIR__ . '/..' . '/symfony/polyfill-mbstring/bootstrap.php',
'667aeda72477189d0494fecd327c3641' => __DIR__ . '/..' . '/symfony/var-dumper/Resources/functions/dump.php',
...
);

$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);
return array(
'0e6d7bf4a5811bfa5cf40c5ccd6fae6a' => $vendorDir . '/symfony/polyfill-mbstring/bootstrap.php',
'667aeda72477189d0494fecd327c3641' => $vendorDir . '/symfony/var-dumper/Resources/functions/dump.php',
   ....
);

class ComposerAutoloaderInit7b790917ce8899df9af8ed53631a1c29{
  public static function getLoader(){
      ...
      foreach ($includeFiles as $fileIdentifier => $file) {
        composerRequire7b790917ce8899df9af8ed53631a1c29($fileIdentifier, $file);
      }
      ...
  }
}
function composerRequire7b790917ce8899df9af8ed53631a1c29($fileIdentifier, $file)
 {
    if (empty(\$GLOBALS['__composer_autoload_files'][\$fileIdentifier])) {
        require $file;
        $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
    }
}

public function loadClass($class)
{
    if ($file = $this->findFile($class)) {
        includeFile($file);
        return true;
    }
}
public function findFile($class)
{
    // work around for PHP 5.3.0 - 5.3.2 https://bugs.php.net/50731
    if ('\\' == $class[0]) {
        $class = substr($class, 1);
    }
    // class map lookup
    if (isset($this->classMap[$class])) {
        return $this->classMap[$class];
    }
    if ($this->classMapAuthoritative) {
        return false;
    }
    $file = $this->findFileWithExtension($class, '.php');
    // Search for Hack files if we are running on HHVM
    if ($file === null && defined('HHVM_VERSION')) {
        $file = $this->findFileWithExtension($class, '.hh');
    }
    if ($file === null) {
        // Remember that this class does not exist.
        return $this->classMap[$class] = false;
    }
    return $file;
}

private function findFileWithExtension($class, $ext)
{
    // PSR-4 lookup
    $logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
    $first = $class[0];
    if (isset($this->prefixLengthsPsr4[$first])) {
        foreach ($this->prefixLengthsPsr4[$first] as $prefix => $length) {
            if (0 === strpos($class, $prefix)) {
                foreach ($this->prefixDirsPsr4[$prefix] as $dir) {
                    if (file_exists($file = $dir . DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $length))) {
                        return $file;
                    }
                }
            }
        }
    }
    // PSR-4 fallback dirs
    foreach ($this->fallbackDirsPsr4 as $dir) {
        if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
            return $file;
        }
    }
    // PSR-0 lookup
    if (false !== $pos = strrpos($class, '\\')) {
        // namespaced class name
        $logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)
            . strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);
    } else {
        // PEAR-like class name
        $logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR) . $ext;
    }
    if (isset($this->prefixesPsr0[$first])) {
        foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
            if (0 === strpos($class, $prefix)) {
                foreach ($dirs as $dir) {
                    if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
                        return $file;
                    }
                }
            }
        }
    }
    // PSR-0 fallback dirs
    foreach ($this->fallbackDirsPsr0 as $dir) {
        if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
            return $file;
        }
    }
    // PSR-0 include paths.
    if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
        return $file;
    }
}

p' => 
            array (
                'phpDocumentor\\Reflection\\' => 25,
                'phpDocumentor\\Fake\\' => 19,
          )

'phpDocumentor\\Reflection\\' => 
        array (
            0 => __DIR__ . '/..' . '/phpdocumentor/reflection-common/src',
            1 => __DIR__ . '/..' . '/phpdocumentor/type-resolver/src',
            2 => __DIR__ . '/..' . '/phpdocumentor/reflection-docblock/src',
        ),