When should you use PDOStatement::closeCursor() in PHP when working with database connections?

When working with database connections in PHP using PDO, it is important to properly close the cursor after executing a query to free up resources and prevent potential memory leaks. The PDOStatement::closeCursor() method should be used when you have finished fetching all the results from a query and want to ensure that the cursor is closed. 

// Assume $pdo is your PDO object and $stmt is your prepared statement

$stmt = $pdo->prepare("SELECT * FROM users");
$stmt->execute();

// Fetch results here

$stmt->closeCursor(); // Close the cursor after fetching results

Keywords

PDOStatement closeCursor PHP database connections performance.

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