Ask a php source page security question-php Tutorial

Ask a php source page security question www.1.com/a.php fill in the information page
Www.1.com/ B .php save data page
B. php use a HTTP-REFERER to determine whether the source page is a. php
Does this play a certain security role?

Reply to discussion (solution)

Yes

You can also use session or add a formkey to the hidden domain for unique identification. There are many ways you can do that, but it is hard to say that when you encounter a simulated commit.

Yes, but use? Not big, because? Can the header be modeled? .
So please do well? Device ???? It is necessary.

This can only prevent the gentleman from the villain.

Session or generate a token... verify token.

Www.1.com

A unique sessionid is generated for the same domain name.
Judge by sessionid

Thank you!