php全国城市数据库

<?php
$servername = "your_servername";
$username = "your_username";
$password = "your_password";
$dbname = "your_dbname";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);

// 检查连接
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}
echo "连接成功";
?>

<?php
$sql = "SELECT * FROM cities WHERE province = 'Guangdong'";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // 输出数据
    while($row = $result->fetch_assoc()) {
        echo "城市: " . $row["city_name"]. " - 省份: " . $row["province"]. "<br>";
    }
} else {
    echo "0 结果";
}
?>

<?php
$sql = "UPDATE cities SET city_name='Shenzhen' WHERE city_name='Shenzen'";
if ($conn->query($sql) === TRUE) {
    echo "记录更新成功";
} else {
    echo "Error updating record: " . $conn->error;
}
?>