php获取包含文件的名称空间

问题描述：

//file foo.php
<?php
namespace foo;
class foo{
    function __construct(){
        echo "hello";
    }
}
?>

//file index.php
<?php
require_once("foo.php");
echo __NAMESPACE__;
?>

我的问题是，从我的index.php文件中，是否可以在不读取文件内容并对其执行正则表达式的情况下知道foo.php的命名空间是什么?这似乎是很多开销.

My question is, from my index.php file, is it possible to know what the namespace of foo.php is without reading the file contents and doing a regular expression on it? That just seems like a lot of overhead.

///编辑

我真的很希望能够将命名空间动态添加到所包含的文件中.

I'd really like to be able to dynamically add the namespace to the included file.

<?php
namespace dynamic;
require_once("foo.php");
echo __NAMESPACE__;
?>

我想允许第三方插件，但是php名称空间似乎很糟糕.我不想让插件编辑器必须创建一个名称空间.

I want to allow for third-party plugins, but php namespaces seems terrible. I don't want to have the plugin editors have to create a namespace.

答

否.但是您可以这样欺骗它:

No. But you could trick it this way round:

//file foo.php
<?php
  namespace foo;
  //...
  return __NAMESPACE__;  // must be last line
?>

为了读出来:

//file index.php
<?php
  $ns = require_once("foo.php");

php获取包含文件的名称空间

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