php – PDO的多个插入

参见英文答案 > Insert multiple rows with PDO1个
我有数据库表：图像和类别

目前,在类别表中插入的唯一功能类似于：

public function add($ttitle)
{      
try
    {
        $stmt = $this->db->prepare("INSERT INTO category (title) VALUES(:title)");
        $stmt->bindparam(":title",$ttitle);                 
        $stmt->execute();
        return true;

    }
    catch(PDOException $e)
    {
        echo $e->getMessage();  
        return false;
    }

}

我有一个表单输入标题和插入网址图像的可能性.

通过点击提交标题我想转到类别表,到目前为止,图像应该转到表格图像,每个图像的ID,但内部联接到类别的ID.

表格图片：

id_image | category_id | dir_image

我无法做到这一点

$stmt = $this->db->prepare("INSERT INTO category (title) VALUES(:ttitle)");

$stmt = $this->db->prepare("SELECT id_image FROM images WHERE id_category = category_id ");

我想要的结果示例：

HTML表单

Category title: Test
Image1:   image1.png
Image2:   image2.png
Image3:   image3.png
Image4:   image4.png
              Submit

提交后

表类别：

id_category | title
    1          Test

表格图片：

id_image | category_id | dir_image
    1            1         image1.png
    2            1         image2.png
    3            1         image3.png
    4            1         image4.png

更新：

public function add($ttitle,$images)
{
try {
        $stmt = $this->db->prepare("INSERT INTO category (title) VALUES(:title)");
        $stmt->bindparam(":title",$ttitle);                    
        $stmt->execute();

        $lastId = $db->lastInsertId();

       $imgs = count($images);
       for ($i = 0; $i < $imgs; $i++){

       $stmt = $this->db->prepare("INSERT INTO images (category_id,dir_image) VALUES (:title)");
        $stmt->bindparam(":category_id",$lastId); 
        $stmt->bindparam(":dir_image",$images);
        $stmt = $this->db->prepare($sql);
        $stmt->execute()

        } 



        return true;
    }
    catch(PDOException $e) {
        echo $e->getMessage();    
        return false;
    }

}

$stmt = $this->db->prepare("INSERT INTO images (category_id,dir_image) 
                            VALUES (:category_id,:dir_image)");

$stmt->bindParam(":category_id",$lastId); 
$stmt->bindParam(":dir_image",$image);
for ($i = 0; $i < count($images); $i++){
    $image = $images[$i];
    $stmt->execute();
}

$stmt = $this->db->prepare("INSERT INTO images (category_id,$item);
foreach ($images as $item){
    $stmt->execute();
}