What are the potential pitfalls of not using SQL on a server when working with PHP?

Potential pitfalls of not using SQL on a server when working with PHP include decreased efficiency, security vulnerabilities, and limited functionality. To avoid these pitfalls, it is essential to utilize SQL to interact with databases securely and efficiently. 

// Example of connecting to a MySQL database using SQL in PHP
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";

Keywords

SQL injection database security PDO prepared statements data validation

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