Validating the Username and the Password with PHP

Using PHP functions for hashing and validation

PHP has two convenient functions that make it easier to make the right decisions, security-wise. These functions will also save you some custom work related to password hashing and comparing. To hash a password for the first time (when the user creates their account), you can use the password_hash() function. To compare a password to a stored hash of the actual password, you can use the password_verify() function.