$stmt = $pdo->prepare("UPDATE users SET age = 30 WHERE id = :id"); $stmt->bindParam(':id', $id); $stmt->execute(); $count = $stmt->rowCount(); echo "$count rows were updated.";
$query = "SELECT * FROM products"; $result = $pdo->query($query); $count = $result->rowCount(); if ($count > 0) { echo "There are $count products in the database."; } else { echo "No products were found in the database."; }In this example, rowCount is used to count the number of rows returned by a select query to the products table. If there are more than 0 rows, a message is echoed out stating how many products are in the database. If there are 0 rows, a message is echoed out indicating that no products were found. Package Library: PDO (PHP Data Objects)