使用PHP从mysql导出到csv时获取列名

SHOW COLUMNS FROM table_name;

SELECT * FROM table_name;

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

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

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

// 获取表的列名
$table_name = "your_table_name";
$sql = "SHOW COLUMNS FROM $table_name";
$result = $conn->query($sql);

// 保存列名到数组
$columns = array();
if ($result->num_rows > 0) {
    while ($row = $result->fetch_assoc()) {
        $columns[] = $row['Field'];
    }
}

// 创建CSV文件并写入列名
$csv_file = "export.csv";
$file = fopen($csv_file, 'w');
fputcsv($file, $columns);

// 获取要导出的数据
$sql = "SELECT * FROM $table_name";
$result = $conn->query($sql);

// 将数据逐行写入CSV文件
if ($result->num_rows > 0) {
    while ($row = $result->fetch_assoc()) {
        fputcsv($file, $row);
    }
}

// 关闭文件和数据库连接
fclose($file);
$conn->close();

echo "导出成功！";
?>