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How to create a database through php, this article will introduce in detail the operation of creating a database in php.
Instance (MySQLi - Object-oriented)
<?php $servername = "localhost"; $username = "username"; $password = "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); }
//Create database
$sql = "CREATE DATABASE myDB";if ($conn->query($sql) === TRUE) { echo "数据库创建成功";} else { echo "Error creating database: " . $conn->error;}$conn->close();?>
Note: When you create a new database , you must specify three parameters (servername, username and password) for the mysqli object.
Tip: If you use another port (default is 3306), add an empty string for the database parameters, such as: new mysqli("localhost", "username", "password", "", port)
Instance (MySQLi Procedural)
<?php $servername = "localhost"; $username = "username"; $password = "password"; // 创建连接 $conn = mysqli_connect($servername, $username, $password); // 检测连接 if (!$conn) { die("连接失败: " . mysqli_connect_error()); }
//Create database
$sql = "CREATE DATABASE myDB";if (mysqli_query($conn, $sql)) { echo "数据库创建成功";} else { echo "Error creating database: " . mysqli_error($conn);}mysqli_close($conn);?>
Note: The following uses the PDO instance to create the database "myDBPDO":
Instance
Using PDO:
<?php $servername = "localhost"; $username = "username"; $password = "password"; try { $conn = new PDO("mysql:host=$servername;dbname=myDB", $username, $password); // 设置 PDO 错误模式为异常 $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $sql = "CREATE DATABASE myDBPDO"; // 使用 exec() ,因为没有结果返回 $conn->exec($sql); echo "数据库创建成功<br>"; } catch(PDOException $e) { echo $sql . "<br>" . $e->getMessage(); } $conn = null; ?>
This article introduces in detail how to create a database through php. For more learning materials, please pay attention to the php Chinese website.
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