PHP namespaces and require

I need to include several files in a main index.php file. I'm working with namespaces.

Can I use include/require and make 开发者_开发技巧the files use the same namespace as index.php without specifying the namespaces and use statements in each included file?

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PHP namespaces are scoped at the file level.

If a.php is inside a namespace, and it includes b.php, but b doesn't specify a namespace, it will not adopt the namespace defined in a.