What are the differences between mysqli and mysql functions in PHP and how can they affect database operations?

The main difference between mysqli and mysql functions in PHP is that mysqli is the improved version of mysql with added features and improved security. Using mysqli functions is recommended for database operations as they provide better performance, support for prepared statements, and enhanced security features. 

// Using mysqli functions for database operations
$mysqli = new mysqli("localhost", "username", "password", "database");

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

// Perform database operations using mysqli functions
$result = $mysqli->query("SELECT * FROM table");

// Close connection
$mysqli->close();

Keywords

mysqli mysql PHP database operations differences

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