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 appmodels;
use yiibasemodel;
use yiiwebuploadedfile;
/**
* 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 yiiwidgetsactiveform;
?>
<?php $form = activeform::begin([‘options' => ['enctype' => 'multipart/form-data']]) ?>
<?= $form->field($model, ‘file')->fileinput() ?>
<button>submit</button>
<?php activeform::end() ?>
控制器
use appmodelsuploadform;
use yiiwebuploadedfile;
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]);
}
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