Sometimes you need to add an extra protection to password-protected website. This article explains how access to the login page can be restricted after three unsuccessful login attempts. This schema uses visitors IP address to store log attempts in the database and block access to login feature for 30 minutes after third unsuccessful attempt.
First you will use a form to pass the $pw variable to the php script. When entering passwords into forms it is a good idea to use the "password" input box instead of the "text" one, so that as you type there are asterisks in place of the input. Something like this will work fine:
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