插入多条记录

使用 MySQLi 和 PDO 向 MySQL 插入多条记录

多条 SQL 语句必须通过 mysqli_multi_query() 函数执行。

下例向 "MyGuests" 表中添加了三条新记录：

实例（MySQLi 面向对象）

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

// 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);
}

$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', 'john@example.com');";
$sql .= "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('Mary', 'Moe', 'mary@example.com');";
$sql .= "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('Julie', 'Dooley', 'julie@example.com')";

if ($conn->multi_query($sql) === TRUE) {
  echo "新记录已成功创建";
} else {
  echo "错误：" . $sql . "<br>" . $conn->error;
}

$conn->close();
?>

注意：每个 SQL 语句必须以分号分隔。

实例（MySQLi 过程化）

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

// 创建连接
$conn = mysqli_connect($servername, $username, $password, $dbname);
// 检查连接
if (!$conn) {
  die("连接失败：" . mysqli_connect_error());
}

$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', 'john@example.com');";
$sql .= "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('Mary', 'Moe', 'mary@example.com');";
$sql .= "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('Julie', 'Dooley', 'julie@example.com')";

if (mysqli_multi_query($conn, $sql)) {
  echo "新记录已成功创建";
} else {
  echo "错误：" . $sql . "<br>" . mysqli_error($conn);
}

mysqli_close($conn);
?>

PDO 的方式略有不同：

实例（PDO）

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

try {
  $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
  // 将 PDO 错误模式设置为异常
  $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

  //  开始事务
  $conn->beginTransaction();
  // 我们的 SQL 语句
  $conn->exec("INSERT INTO MyGuests (firstname, lastname, email)
  VALUES ('John', 'Doe', 'john@example.com')");
  $conn->exec("INSERT INTO MyGuests (firstname, lastname, email)
  VALUES ('Mary', 'Moe', 'mary@example.com')");
  $conn->exec("INSERT INTO MyGuests (firstname, lastname, email)
  VALUES ('Julie', 'Dooley', 'julie@example.com')");

  // 提交事务
  $conn->commit();
  echo "新记录已成功创建";
} catch(PDOException $e) {
  // 如果出现问题，则回滚事务
  $conn->rollback();
  echo "错误：" . $e->getMessage();
}

$conn = null;
?>