magento 文件上传类

class Uploadimg extends Mage_Core_Helper_Abstract
{
protected $_supportedExtensions = array('jpg', 'JPG', 'png', 'PNG', 'gif', 'GIF','jpeg','JPEG');
protected $_file = null;
protected $_baspath=null;

public function getBasePath() {
return $this->_baspath;
}

public function setBasePath($dir){
$this->_baspath=Mage::getBaseDir('media') . DS . $dir;
}

public function setFileData($fileData) {
$this->_file = $fileData;
}

public function getFileData() {
return $this->_file;
}

public function saveFile() {

$uploadedFile = null;

if ($fileData = $this->getFileData()) {

$uploader = new Varien_File_Uploader($this->getFileData());

$uploader->setFilesDispersion(true);
$uploader->setFilenamesCaseSensitivity(false);
$uploader->setAllowRenameFiles(true);
$uploader->setAllowedExtensions($this->_supportedExtensions);
if(!is_null($this->getBasePath())) {

4000
$uploader->save($this->getBasePath(), $fileData['name']);
$uploadedFile = $uploader->getUploadedFileName();
}
}
return $uploadedFile;
}

}