php中mysql查询表结构

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

// 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);
}

// 使用DESCRIBE查询表结构
$sql_describe = "DESCRIBE table_name";
$result_describe = $conn->query($sql_describe);

if ($result_describe->num_rows > 0) {
    echo "表结构 (DESCRIBE): <br>";
    while($row = $result_describe->fetch_assoc()) {
        echo "列名: " . $row["Field"] . " - 类型: " . $row["Type"] . "<br>";
    }
} else {
    echo "无法获取表结构信息";
}

// 使用SHOW CREATE TABLE查询表结构
$sql_show_create = "SHOW CREATE TABLE table_name";
$result_show_create = $conn->query($sql_show_create);

if ($result_show_create->num_rows > 0) {
    echo "表结构 (SHOW CREATE TABLE): <br>";
    while($row = $result_show_create->fetch_assoc()) {
        echo "创建表语句: " . $row["Create Table"] . "<br>";
    }
} else {
    echo "无法获取表的创建语句";
}

$conn->close();
?>