How we can save a image in a folder yii2 framework?

问题

When i am uploading a image it is saved in default folder that is /web. I want to save my images in user defined folder.

回答1:

If its a user defined folder, chances are pretty good you will have to create the directory on the fly, which the UploadedFile method does not do. For Yii2 I would use the createDirectory() method in the "yii\helpers\BaseFileHelper" class. ex:

use yii\web\UploadedFile;
use yii\helpers\BaseFileHelper;

$model->uploaded_file = UploadedFile::getInstance($model, 'uploaded_file');

$unique_name = uniqid('file_');
$model->file_type = $model->uploaded_file->extension;
$model->file_name = $unique_name.'.'.$model->file_type;
$model->file_path = 'uploads/projects/'. $project_id;

BaseFileHelper::createDirectory($model->file_path);

$model->uploaded_file->saveAs($model->file_path .'/'. $model->file_name);
$model->save();

Check out createDirectory

回答2:

Something like this should do the job, if you use model/active form to submit the form (upload image). The key part is saveAs, where the first parameter can be path to file. This includes also Yii Aliases.

if (\Yii::$app->request->isPost) {
    $model->load(\Yii::$app->request->getBodyParams());
    $file = \yii\web\UploadedFile::getInstance($model, 'image');
    $file->saveAs('path/to/file');
}

Also take a deeper look into UploadedFile class.

回答3:

//yii 1.1 example
if($file=CUploadedFile::getInstanceByName("Shorty[avatar]"))
{
    $basepath = preg_replace('~([\\\]|[\/])protected~s','',Yii::app()->basePath);

    $filename = $basepath ."/images/shorty_images/" . $shorty_model->id . "/";

    if(!file_exists($filename))
        if(!mkdir($basepath ."/images/shorty_images/" . $shorty_model->id, 0777, true))
            throw new CHttpException(404,'Directory create error!');

    $status = $file->saveAs($filename . iconv("UTF-8", "ASCII//IGNORE", $file->name));
}

Yii 2: http://www.yiiframework.com/doc-2.0/yii-web-uploadedfile.html

回答4:

The best way is using yii2 file kit. https://github.com/trntv/yii2-file-kit That more feature

File upload widget (based on Blueimp File Upload)
Component for storing files (built on top of flysystem)
Actions to download, delete, and view (download) files
Behavior for saving files in the model and delete files when you delete a model

回答5:

if ($model->load(Yii::$app->request->post())) {

    $model->password=md5($model->password);
    $model->photo = UploadedFile::getInstance($model, 'photo');

    if($model->validate()){
        $model->photo->saveAs('uploads/' . $model->photo->baseName . '.' . $model->photo->extension);
        $model->save();
        return $this->redirect(['index']);
    }
}

It saves my images in web/uploads folder.

回答6:

\Yii::$app->basePath corresponds to your application folder,for example \myapp\backend\.So if you want to save it to myapp\backend\data,save it like

$file = \yii\web\UploadedFile::getInstance($model, 'logo');
$file->saveAs(\Yii::$app->basePath . '/data/'.$file);

来源：https://stackoverflow.com/questions/24422769/how-we-can-save-a-image-in-a-folder-yii2-framework

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yii2