Question about mysqli_real_escape_string

Question

So, what does mysqli_real_escape_string use for? I googled that it was an escape variables for security, but in PHP.net official site it was said that This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. So, what should I use now? I am trying to create a simple login page using PHP & MySQL

Answer 1

Use PDO
Tutorial here https://phpdelusions.net/pdo