[英]How to use Composer's autoloader to autoload arbitrary classes/namespaces not configured in composer.json?
For reasons that are unimportant (let's just call it an intellectual curiosity) I'm trying to use Composer's autoloader to load a package not in composer.json
/ composer.lock
.出于不重要的原因(我们称之为求知欲),我正在尝试使用 Composer 的自动加载器加载不在composer.json
/ composer.lock
中的 package 。
Here's what I've tried:这是我尝试过的:
$loader = new \Composer\Autoload\ClassLoader();
$loader->addPsr4('MyNameSpace\\', __DIR__ . '/vendor/username/projectname/src');
$loader->register();
Unfortunately, this isn't working.不幸的是,这不起作用。 Whenever I try to do use MyNameSpace\Whatever; $a = new Whatever;
每当我尝试use MyNameSpace\Whatever; $a = new Whatever;
use MyNameSpace\Whatever; $a = new Whatever;
I get an error about how Whatever
can't be found.我收到有关无法找到Whatever
的错误消息。
With this file structure:使用此文件结构:
Where class Test1
is:其中 class Test1
是:
// out/Test1.php
class Test1
{
public function foo(): string
{
return "foo bar baz";
}
}
and class FooBar/Console/Test2
is:和 class FooBar/Console/Test2
是:
// psr4/someroot/Console/Test2
namespace FooBar\Console;
class Test2
{
public function bar(): string
{
return "fizz buzz";
}
}
and having this on the test script ( test.php
)并将其放在测试脚本中( test.php
)
// test.php
require __DIR__ . '/vendor/autoload.php';
$loader = new \Composer\Autoload\ClassLoader();
$loader->add('Test1', __DIR__ . '/out');
$loader->addPsr4('FooBar\\', __DIR__ . '/psr4/someroot');
$loader->register();
$t1 = new Test1();
$t2 = new \FooBar\Console\Test2();
echo $t1->foo(), "\n";
echo $t2->bar(), "\n";
I can run php test.php
perfectly fine.我可以完美地运行php test.php
。
So something else must be misconfigured in your project.因此,您的项目中一定有其他配置错误。 Use the above example as a guide to fix it.使用上面的示例作为修复它的指南。
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