如何使用PHP將數據插入MySQL表中?
建立PDO數據庫連接,確保設置異常模式;2. 使用預處理語句插入數據,通過bindParam綁定參數防止SQL注入;3. 執行語句並處理錯誤,腳本結束自動關閉連接。安全插入數據的關鍵是連接、準備、綁定和執行。
To insert data into a MySQL table using PHP, you need to establish a connection to the database and execute an INSERT SQL statement. The most secure and recommended way is by using prepared statements to prevent SQL injection attacks.
1. Establish a Database Connection
Use the PDO or MySQLi extension to connect to your MySQL database. Here's an example using PDO:
try { $pdo = new PDO("mysql:host=localhost;dbname=your_database", "username", "password"); $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); } catch (PDOException $e) { die("Connection failed: " . $e->getMessage()); }
2. Prepare and Execute the INSERT Statement
Use a prepared statement to safely insert user-provided data. This separates SQL logic from data.
$sql = "INSERT INTO users (name, email, age) VALUES (:name, :email, :age)"; $stmt = $pdo->prepare($sql); $stmt->bindParam(':name', $name); $stmt->bindParam(':email', $email); $stmt->bindParam(':age', $age); // Set parameters and execute $name = "John Doe"; $email = "john@example.com"; $age = 30; $stmt->execute(); echo "New record inserted successfully";
3. Handle Errors and Close Connection
Always handle possible errors and let the connection close automatically (PDO/MySQLi will close when script ends). For manual control, you can set the variable to null.
if ($stmt->execute()) { echo "Record added."; } else { echo "Error: " . implode(", ", $stmt->errorInfo()); }
Using prepared statements ensures your application remains secure even when inserting dynamic or user-submitted data.
Basically just connect, prepare, bind, and execute. That's the safe way to do it.
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