php mysql临时表

<?php
// 连接到MySQL数据库
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

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

if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 创建临时表
$sql = "CREATE TEMPORARY TABLE temp_table (
    id INT(11) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(50) NOT NULL,
    age INT(3) NOT NULL
)";

if ($conn->query($sql) === TRUE) {
    echo "临时表创建成功";
} else {
    echo "创建临时表失败: " . $conn->error;
}

// 向临时表插入数据
$sql = "INSERT INTO temp_table (name, age) VALUES ('Alice', 25), ('Bob', 30)";

if ($conn->query($sql) === TRUE) {
    echo "数据插入成功";
} else {
    echo "数据插入失败: " . $conn->error;
}

// 查询临时表数据
$sql = "SELECT * FROM temp_table";

$result = $conn->query($sql);

if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "ID: " . $row["id"]. " - Name: " . $row["name"]. " - Age: " . $row["age"]. "<br>";
    }
} else {
    echo "0 结果";
}

// 关闭数据库连接
$conn->close();
?>