Wu Yuxiong - natural born PHP Development Learning: MySQL insert multiple data

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

// 创建链接
$conn = new mysqli($servername, $username, $password, $dbname);
// 检查链接
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', '[email protected]');";
$sql .= "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('Mary', 'Moe', '[email protected]');";
$sql .= "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('Julie', 'Dooley', '[email protected]')";

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

$conn->close();
?>

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
 
// 创建链接
$conn = mysqli_connect($servername, $username, $password, $dbname);
// 检查链接
if (!$conn) {
    die("连接失败: " . mysqli_connect_error());
}
 
$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', '[email protected]');";
$sql .= "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('Mary', 'Moe', '[email protected]');";
$sql .= "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('Julie', 'Dooley', '[email protected]')";
 
if (mysqli_multi_query($conn, $sql)) {
    echo "新记录插入成功";
} else {
    echo "Error: " . $sql . "<br>" . mysqli_error($conn);
}
 
mysqli_close($conn);
?>

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDBPDO";
 
try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    // set the PDO error mode to exception
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
 
    // 开始事务
    $conn->beginTransaction();
    // SQL 语句
    $conn->exec("INSERT INTO MyGuests (firstname, lastname, email) 
    VALUES ('John', 'Doe', '[email protected]')");
    $conn->exec("INSERT INTO MyGuests (firstname, lastname, email) 
    VALUES ('Mary', 'Moe', '[email protected]')");
    $conn->exec("INSERT INTO MyGuests (firstname, lastname, email) 
    VALUES ('Julie', 'Dooley', '[email protected]')");
 
    // 提交事务
    $conn->commit();
    
};"inserting a new record successful"echo
the catch (PDOException $ E ) 
{ 
    // If this fails rollback 
    $ Conn -> ROLLBACK ();
     echo  $ SQL "<br>.". $ E -> the getMessage (); 
} 
 
$ Conn = null ;
 >?

<?php
$servername = "localhost";
$username = "username";
$password = "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);
} else {
    $sql= "INSERT INTO MyGuests (FirstName, LastName, Email) VALUES (?,,??)" ; 
 
    // as mysqli_stmt_prepare () initialization statement objects 
    $ stmt = mysqli_stmt_init ( $ conn ); 
 
    // prepared statements 
    IF ( mysqli_stmt_prepare ( $ stmt , $ SQL )) {
         // binding parameters 
        mysqli_stmt_bind_param ( $ stmt , 'sss', $ FirstName , $ LastName , $ In Email ); 
 
        // set the parameters and execute 
        $ FirstName = 'John' ;
         $ LastName = 'Doe';
        $email = '[email protected]';
        mysqli_stmt_execute($stmt);
 
        $firstname = 'Mary';
        $lastname = 'Moe';
        $email = '[email protected]';
        mysqli_stmt_execute($stmt);
 
        $firstname = 'Julie';
        $lastname = 'Dooley';
        $email = '[email protected]';
        mysqli_stmt_execute($stmt);
    }
}
?>