mysql注册时间php

CREATE TABLE users (
    id INT AUTO_INCREMENT PRIMARY KEY,
    username VARCHAR(255) NOT NULL,
    create_time DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
);

<?php
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "your_database";

// 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);
}

// 查询用户注册时间
$sql = "SELECT create_time FROM users WHERE id = 1";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // 输出数据
    while($row = $result->fetch_assoc()) {
        echo "注册时间: " . $row["create_time"];
    }
} else {
    echo "0 结果";
}

$conn->close();
?>

<?php
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "your_database";

// 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);
}

// 插入新用户
$username = "newuser";
$sql = "INSERT INTO users (username) VALUES ('$username')";

if ($conn->query($sql) === TRUE) {
    echo "新记录插入成功";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

$conn->close();
?>

date_default_timezone_set('Asia/Shanghai');

SELECT CONVERT_TZ(create_time, @@session.time_zone, '+08:00') AS create_time FROM users;