yii框架多文件上傳

 //控制器層

 <?php
 namespace app\controllers;

 use app\models\Uploads;
 use Yii;
 use yii\web\Controller;
 use yii\web\UploadedFile;

 class UploadsController extends Controller
 {
     public function actionUpload()
     {
         //實例化數據表
         $model = new Uploads();
         $id = yii::$app->db->createCommand("select id from upload order by id desc limit 1")->queryOne();
         $cid = $id['id'];
         //判斷傳值方式是否為post提交方式
         if (Yii::$app->request->isPost) {
             $model->imageFiles = UploadedFile::getInstances($model, 'imageFiles');
             $model->imageFiles = $model->upload();
             $arr = $model->imageFiles;
             foreach ($arr as $key=>$val){
                 yii::$app->db->createCommand("insert into uploads (cid,imageFiles) values ('$cid','$val')")->execute();
             }
         }
         return $this->render('upload', ['model' => $model]);
     }
 }

 //模型層

 <?php
 namespace app\models;

 use yii\db\ActiveRecord;

 class Uploads extends ActiveRecord
 {
     //設定圖片上傳驗證規則  eg:上傳圖片格式&圖片個數等等
     public function rules()
     {
         return [
             [['imageFiles'], 'file', 'skipOnEmpty' => true, 'extensions' => 'png, jpg', 'maxFiles' => 8],
         ];
     }

     public function upload()
     {
         if ($this->validate()) {
             foreach ($this->imageFiles as $file) {
                 $file->saveAs('uploads/' . $file->baseName . '.' . $file->extension);
                 //實現文件上傳入庫路徑全名
                 $arr[] =  'http://www.wechat.com/uploads/' . $file->baseName . '.' . $file->extension;
             }
             return $arr;
         } else {
             return false;
         }
     }
 }

下面是视图层

 <?php
 use yii\widgets\ActiveForm;
 ?>

 <?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]) ?>

 <?= $form->field($model, 'imageFiles[]')->fileInput(['multiple' => true, 'accept' => 'image/*']) ?>

     <button>Submit</button>

 <?php ActiveForm::end() ?>