php - 获取php和mysqli中插入数据的Id

Question

我正在从另一个页面收集数据，并将其发送到处理数据并将其发送到我的数据库表。这是代码。

require "config.php";

if ( $_POST['insertPost'] == true ){

  $postTitle = $_POST['title'];

  $postContent = $_POST['content'];

  $postImage = $_POST['image'];

  $postDate = $_POST['datetime'];

  $categories = $_POST['categories'];

  $c->query( "INSERT INTO blog ( title, content, image, datetime, categories ) VALUES ( '$postTitle', '$postContent', '$postImage','$postDate', '$categories')" );

  //echo "Inserted";      
}

这就是表格的样子。

如何获取插入数据的ID信息并将其存储到变量中？

Answer 1

使用 mysqli 进行数据库操作，因为 mysql 现已弃用。所以，试试这个:

$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno())
{
    echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

mysqli_query($con, "INSERT INTO blog (title, content, image, datetime, categories) VALUES ('$postTitle', '$postContent', '$postImage','$postDate', '$categories')");

// store auto-generated id
$lastInsertedId = mysqli_insert_id($con);

mysqli_close($con);