PHP名称空间无法在同一目录的相同名称空间中找到类-在dev中起作用，而不是prod

Question

I have the following PHP files. It works in dev. They have the same namespace, and same PHP version. When I deploy to Heroku, it gives an error. Do you know why?

Product.php

namespace app\models;
class Product extends \yii\db\ActiveRecord
public function getEbay()    {
    return $this->hasOne(Ebay::className(), ['product_id' => 'id'])->inverseOf('product'); # line 56

Ebay.php

namespace app\models;
class Ebay extends \yii\db\ActiveRecord

2015-03-25T02:00:01.003508+00:00 app[web.1]: [25-Mar-2015 02:00:01 UTC] PHP Fatal error: Class 'app\\models\\Ebay' not found in /app/models/Product.php on line 56

>heroku run php --version
Running `php --version` attached to terminal... up, run.5360
PHP 5.6.6 (cli) (built: Feb 19 2015 10:11:22)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies
    with Zend OPcache v7.0.4-dev, Copyright (c) 1999-2015, by Zend Technologies

Local:

$ php --version
PHP 5.6.6 (cli) (built: Feb 25 2015 13:54:50)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies

---

Ok I even put the use in the index.php and it still fails.

C:\Users\Chloe\workspace\project>heroku run cat web/index.php
Running `cat web/index.php` attached to terminal... up, run.3679
<?php

// comment out the following two lines when deployed to production
if ($_SERVER['SERVER_NAME'] == 'localhost' || $_SERVER['SERVER_NAME'] == '127.0.0.1') {
  defined('YII_DEBUG') or define('YII_DEBUG', true);
  defined('YII_ENV') or define('YII_ENV', 'dev');
}

require(__DIR__ . '/../vendor/autoload.php');
require(__DIR__ . '/../vendor/yiisoft/yii2/Yii.php');

$config = require(__DIR__ . '/../config/web.php');

use app\models; Ebay::className();
(new yii\web\Application($config))->run();

C:\Users\Chloe\workspace\project>heroku logs
...
2015-03-26T17:10:13.590855+00:00 app[web.1]: [26-Mar-2015 17:10:13 UTC] PHP Fatal error:  Class 'Ebay' not found in /app/web/index.php on line 14

Answer 1

Ok I found it. It was because the file was named EBay.php in Git and Heroku but Ebay.php on the Windows file system. Curse you Git! This solved it.

git mv -f models/EBay.php models/Ebay.php

This command failed so I had to investigate further:

heroku run ls models/Ebay.php