yii2利用自带UploadedFile实现上传图片的示例
作者：ony
本篇文章主要介绍了yii2利用自带UploadedFile实现上传图片的示例，小编觉得挺不错的，现在分享给大家，也给大家做个参考。一起跟随小编过来看看吧
本人搜索了很多关于yii2利用自带UploadedFile实现上传图片介绍,下面我来记录一下。
创建一个 models/UploadForm.php:
namespace app\models;
use yii\base\Model;
use yii\web\UploadedFile;
/**
* UploadForm is the model behind the upload form.
*/
class UploadForm extends Model
{
/**
* @var UploadedFile file attribute
*/
public $file;
/**
* @return array the validation rules.
*/
public function rules()
{
return [
[['file'], ‘file'],
];
}
}
视图文件
<?php use yii\widgets\ActiveForm; ?> <?php $form = ActiveForm::begin([‘options' => ['enctype' => 'multipart/form-data']]) ?> <?= $form->field($model, ‘file')->fileInput() ?> <button>Submit</button> <?php ActiveForm::end() ?>
控制器
use app\models\UploadForm;
use yii\web\UploadedFile;
public function actionUpload()
{
$model = new UploadForm();
if (Yii::$app->request->isPost) {
$model->file = UploadedFile::getInstance($model, ‘file');
if ($model->file && $model->validate()) {
$model->file->saveAs(‘uploads/' . $model->file->baseName . ‘.' . $model->file->extension);
}
}
return $this->render(‘upload', ['model' => $model]);
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。