PHP MySQL은 데이터를 읽습니다.

<?php $servername = "localhost"; $username = "username"; $password = "password"; $dbname = "myDB"; // 创建连接 $conn = new mysqli($servername, $username, $password, $dbname); // 检测连接 if ($conn->connect_error) { die("连接失败: " . $conn->connect_error); } $sql = "SELECT id, firstname, lastname FROM MyGuests"; $result = $conn->query($sql); if ($result->num_rows > 0) { // 输出每行数据 while($row = $result->fetch_assoc()) { echo "<br> id: ". $row["id"]. " - Name: ". $row["firstname"]. " " . $row["lastname"]; } } else { echo "0 个结果"; } $conn->close(); ?>