PHP 使用 Composer 中的自动加载器添加自定义命名空间
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PHP adding custom namespace using autoloader from composer
提问by John
Here is my folder structure:
这是我的文件夹结构：
Classes
- CronJobs
- Weather
- WeatherSite.php
I want to load WeatherSite class from my script. Im using composer with autoload:
我想从我的脚本中加载 WeatherSite 类。我使用带自动加载的作曲家：
$loader = include(LIBRARY .'autoload.php');
$loader->add('Classes\Weather',CLASSES .'cronjobs/weather');
$weather = new Classes\Weather\WeatherSite();
Im assuming the above code is adding the namespace and the path that namespace resolves to. But when the page loads I always get this error:
我假设上面的代码正在添加命名空间和命名空间解析到的路径。但是当页面加载时，我总是收到这个错误：
Fatal error: Class 'Classes\Weather\WeatherSite' not found
Here is my WeatherSite.php file:
这是我的 WeatherSite.php 文件：
namespace Classes\Weather;
class WeatherSite {
public function __construct()
{
}
public function findWeatherSites()
{
}
}
What am I doing wrong?
我究竟做错了什么？
回答by Tomá? Votruba
You actually don't need custom autoloader, you can use PSR-4.
您实际上不需要自定义自动加载器，您可以使用 PSR-4。
Update your autoloadsection in composer.json:
更新您的autoload部分composer.json：
"autoload": {
"psr-4": {
"Classes\Weather\": "Classes/CronJobs/Weather"
}
}
To explain: it's {"Namespace\\": "directory to be found in"}
解释一下：它是 {"Namespace\\": "directory to be found in"}
Don't forget to run composer dump-autoloadto update Composer cache.
不要忘记运行composer dump-autoload以更新 Composer 缓存。
Then you can use it like this:
然后你可以像这样使用它：
include(LIBRARY .'autoload.php');
$weather = new Classes\Weather\WeatherSite();
