删除mysql所有表数据

TRUNCATE TABLE table_name;

DELETE FROM table_name;

DROP TABLE table_name;
CREATE TABLE table_name (
    -- 表结构定义
);

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

// 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);
}

// 获取数据库中所有表的名称
$sql = "SHOW TABLES";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // 遍历所有表并清空数据
    while($row = $result->fetch_array()) {
        $table_name = $row[0];
        $truncate_sql = "TRUNCATE TABLE " . $table_name;
        if ($conn->query($truncate_sql) === TRUE) {
            echo "表 " . $table_name . " 的数据已清空。<br>";
        } else {
            echo "清空表 " . $table_name . " 的数据时出错: " . $conn->error . "<br>";
        }
    }
} else {
    echo "数据库中没有表。";
}

// 关闭连接
$conn->close();
?>