编辑代码

<?php
$servername = "localhost";
$username = "user";
$password = "password";
$dbname = "myDB";
// 创建连接
$conn = mysqli_connect($servername, $username, $password, $dbname);
// 检测连接
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT id, firstname, lastname FROM MyGuests";
$result = $conn->query($sql);//执行sql语句
if ($result->num_rows > 0) {
// 输出每行数据
while($row = $result->fetch_assoc()) { //设置结果集为关联数组 并存储在$row中
echo "id: ". $row["id"]. " - Name: ". $row["firstname"]. " " .
$row["lastname"]. "<br>";
}
} else {
echo "0 results";
}
mysqli_close($conn);
?>