What are the technique behind the Password Section in PHP?

My question is very simple, What is the mechanism behind the Enter password Area, that it, converts all the letters into the dot. or is there any way or mechanism to converts dot into a password. Even copy paste also not worked. I get this Idea while Learning a Form creation from W3school Login Form.

<input type="password" placeholder="Enter Password" name="psw" required>


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Hi @sahnisaxena,

Thats exactly how it should be!

<input type="PASSWORD" name="password">

Will make it show asterisks. You can also check the W3 site about this.