在php中从数据库中获取分隔的数组值

// 连接数据库
$servername = "数据库服务器地址";
$username = "数据库用户名";
$password = "数据库密码";
$dbname = "数据库名";

$conn = new mysqli($servername, $username, $password, $dbname);

// 检查连接是否成功
if ($conn->connect_error) {
    die("连接数据库失败: " . $conn->connect_error);
}

// 执行查询
$sql = "SELECT column_name FROM table_name";
$result = $conn->query($sql);

// 获取结果并分隔数组值
if ($result->num_rows > 0) {
    $row = $result->fetch_assoc();
    $values = explode(",", $row["column_name"]);

    // 输出数组值
    foreach ($values as $value) {
        echo $value . "<br>";
    }
} else {
    echo "没有结果";
}

// 关闭数据库连接
$conn->close();