How to print out a value of object - php

Question

I want to know how to get a value of object. I am using Yii framework for imeplement a download function. How to pass a parameter from frontend
I printed out a object, but I don't know how to get a value from this object.
Array
(
[file] => CUploadedFile Object
(
[_name:CUploadedFile:private] => 23602414.pdf
[_tempName:CUploadedFile:private] => D:\wamp\tmp\php8780.tmp
[_type:CUploadedFile:private] => application/pdf
[_size:CUploadedFile:private] => 181004
[_error:CUploadedFile:private] => 0
[_e:CComponent:private] =>
[_m:CComponent:private] =>
)
[layout] => //layouts/column1
[menu] => Array
(
)
[breadcrumbs] => Array
(
)
[defaultAction] => index
[_widgetStack] => Array
(
)
)
I want to get the "23602414.pdf", and store it to a varable.
This is my code.
<?php $model=new Upload(); ?>
<?php if(isset($_POST['Upload'])){$model->attributes=$_POST['Upload'];
$this->file=CUploadedFile::getInstance($model,'file');
}?>
<?php echo CHtml::link('Download file',array('/upload/download','id'=>'23602414.pdf')); ?>
Instead of hard code as 'id'=>'23602414.pdf', I want to echo the file name in there.

Answer 1

try this
<?php $model=new Upload(); ?>
<?php if(isset($_POST['Upload'])){$model->attributes=$_POST['Upload'];
$this->file=CUploadedFile::getInstance($model,'file');
}?>
<?php echo CHtml::link('Download file',array('/upload/download','id'=>$this->file->getName())); ?>
Documentation here https://www.yiiframework.com/doc/api/1.1/CUploadedFile

Answer 2

I rewrited my code like below:
My model:
<?php
class Upload extends CFormModel
{
public $file;
public function rules()
{
return array(
array('file', 'file', 'types'=>'pdf'),
);
}
public function downloadFile($fullpath){
$dir = Yii::getPathOfAlias('application.uploads');
$filename= $fullpath;
if(!empty($fullpath)){
$file = $dir."\\"."$filename";
header("Content-type: application/pdf");
header("Content-Disposition: inline; filename=$filename");
#readfile($file);
Yii::app()->end();
}
else {return false;}
}
}
My controller:
<?php
class UploadController extends Controller
{
public $file;
function actionIndex()
{
$dir = Yii::getPathOfAlias('application.uploads');
$uploaded = false;
$model=new Upload();
if(isset($_POST['Upload']))
{
$model->attributes=$_POST['Upload'];
$this->file=CUploadedFile::getInstance($model,'file');
$file=$this->file;
if($model->validate()){
$uploaded = $file->saveAs($dir.'/'.$file->getName());
}
}
$this->render('index', array(
'model' => $model,
'uploaded' => $uploaded,
'dir' => $dir,
));
}
public function actionDownload($id){
$path = Yii::getPathOfAlias('/yiiroot/trackstar/protected/uploads/')."$id";
$upload=new Upload();
$upload->downloadFile($path);
}
}
My view:
<?php if($uploaded):?>
<p>File was uploaded. Check <?php echo $dir?>.</p>
<?php endif ?>
<?php echo CHtml::beginForm('','post',array
('enctype'=>'multipart/form-data'))?>
<?php echo CHtml::error($model, 'file')?>
<?php echo CHtml::activeFileField($model, 'file')?>
<?php echo CHtml::submitButton('Upload')?>
<?php echo CHtml::endForm()?>
<br/>
<?php $model=new Upload(); ?>
<?php if(isset($_POST['Upload'])){$model->attributes=$_POST['Upload'];
$this->file=CUploadedFile::getInstance($model,'file');
echo CHtml::link('Download file',array('/upload/download','id'=>$this->file->getName()));
}?>
refer:PHP getName() Function