在开发中有时候使用上传是必不可少的，以下就详细介绍yii中的上传。
如下是表单模型：
namespace app\models;
use yii\base\Model;
use yii\web\UploadedFile;//必不可少
class UploadForm extends Model{
/**
* @var UploadedFile[]
*/
public $imageFiles;
public function rules()
{ return [
[['imageFiles'], 'file', 'skipOnEmpty' => false, 'extensions' => 'png, jpg', 'maxFiles' => 4],
];
}
public function upload()
{ if ($this->validate()) {
foreach ($this->imageFiles as $file) {
$file->saveAs('uploads/' . $file->baseName . '.' . $file->extension);
} return true;
} else { return false;
}
}
}然后在html中如下：
<form action="你的url" enctype="multipart/form-data" method="post"> <input type="file" name="imageFiles[]"> <input type="submit" value="send"> </form>
控制器：
namespace app\controllers;
use Yii;use yii\web\Controller;
use app\models\UploadForm;
use yii\web\UploadedFile;//不可少
class SiteController extends Controller{
public function actionUpload()
{
$model = new UploadForm();
if (Yii::$app->request->isPost) {
$model->imageFiles = UploadedFile::getInstances($model, 'imageFiles');
if ($model->upload()) {
// 上传成功之后做处理
return;
}
} return $this->render('upload', ['model' => $model]);
}
}
关键字词:
