How does php obtain the windows domain account that the user logs on?

For example, in the company's Intranet environment, everyone is a domain. How can I use PHP code to identify the user's login windows domain account (BOOT User Name? What do you need to pay attention? Need to work with the company's IT department? Authorize it? For example, in the company's Intranet environment, everyone is a domain.

How can I use PHP code to identify the windows domain account (BOOT user name) that the user logs on)

What is the idea? What do you need to pay attention? Need to work with the company's IT department? Authorize it?

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For example, in the company's Intranet environment, everyone is a domain.

How can I use PHP code to identify the windows domain account (BOOT user name) that the user logs on)

What is the idea? What do you need to pay attention? Need to work with the company's IT department? Authorize it?

To set NTLM authentication in IIS, you must use a domain account to log on.
Phpinfo ()The output shows that the variable is the user's domain account.