What are the potential issues with using outdated mysql_* functions in PHP, and what alternative should be used instead?

Using outdated mysql_* functions in PHP can lead to security vulnerabilities and compatibility issues with newer versions of PHP. It is recommended to switch to mysqli or PDO for database interactions. 

// Connect to database using mysqli
$mysqli = new mysqli("localhost", "username", "password", "database");

// Check connection
if ($mysqli->connect_error) {
    die("Connection failed: " . $mysqli->connect_error);
}

Keywords

mysql_ functions outdated security vulnerability mysqli PDO

Related Questions