password_hash

This tutorial tackles on how to create a simple login and register using PDO extension in PHP. PDO stands for PHP Data Objects and as per official site description, defines a lightweight, consistent interface for accessing databases in PHP. PDO is the most recommended extension nowadays to interact with database because of many features like preventing SQL injections, prepared statements, etc.

This tutorial tackles on how to hash password using PHP's password_hash() function. password hash(), as per official site description, creates a password hash. This function expects two parameters, the password that you want to hash, then the algorithm that you want to use to hash the password. You can then use password_verify() function to check for the hashed password.