How can one effectively manage database connections in PHP to avoid potential pitfalls?

Managing database connections in PHP can be done effectively by using connection pooling, limiting the number of open connections, and properly closing connections after use. This helps prevent issues such as running out of available connections, slowing down the database server, or leaving connections open indefinitely. 

// Establishing a database connection
$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);
}

// Perform database operations

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

Keywords

MySQLi PDO connection pooling persistent connections connection timeout

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