How to create a database and table in PHP?

2 years ago
Noah Thompson
1 minute

To create a database and table in PHP, you can use SQL queries. Here is a basic example:

Create a database.

<?php
$servername = "localhost";
$username = "root";
$password = "";

// 创建连接
$conn = new mysqli($servername, $username, $password);

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

// 创建数据库
$sql = "CREATE DATABASE myDB";
if ($conn->query($sql) === true) {
    echo "数据库创建成功";
} else {
    echo "Error creating database: " . $conn->error;
}

$conn->close();
?>

Create a table:

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

// 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);
}

// 创建表
$sql = "CREATE TABLE myTable (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
firstname VARCHAR(30) NOT NULL,
lastname VARCHAR(30) NOT NULL,
email VARCHAR(50),
reg_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
)";

if ($conn->query($sql) === true) {
    echo "表创建成功";
} else {
    echo "Error creating table: " . $conn->error;
}

$conn->close();
?>

Please note that this is just a basic example. The specific code may vary depending on your database and table structure. Feel free to modify this code as needed.

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