Magento 1.9- upload multiple files with Varien_File_Uploader

Topic 1: upload file with Varien_File_Uploader .

Topic 2: How can I upload image using Varien_File_Uploader in magento?

Topic 3: Upload image using default magento function.

We can find above topic's solution in below code.

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if(isset($_FILES['add_image']['name']) && $_FILES['add_image']['name'] != '') {  try {   /* Starting upload */   $uploader = new Varien_File_Uploader('add_image');     // Any extention would work   $uploader->setAllowedExtensions(array('jpg','jpeg','gif','png'));   $uploader->setAllowRenameFiles(false);     $uploader->setFilesDispersion(true);     // We set media as the upload dir   $path = Mage::getBaseDir('media') . DS . 'projectphoto' . DS . 'image' . DS;   $uploader->save($path, $_FILES['add_image']['name'] );   echo '-->'.$img_name = $uploader->getUploadedFileName();  } catch (Exception $e) {    } }