gistfile1.txt

	private function _upload_image() {
		
		// This is a simplified example, which doesn't cover security of uploaded images.
		// This example just demonstrate the logic behind the process.
		
		// files storage folder
		$dir = base_path('public/temp/');
		$_FILES['file']['type'] = strtolower($_FILES['file']['type']);
		
		if ($_FILES['file']['type'] == 'image/png' || $_FILES['file']['type'] == 'image/jpg' || $_FILES['file']['type'] == 'image/gif' || $_FILES['file']['type'] == 'image/jpeg' || $_FILES['file']['type'] == 'image/pjpeg') {
			$extension = explode('/', $_FILES['file']['type']) [1];
			
			// setting file's mysterious name
			$filename = md5(date('YmdHis')) . '.' . $extension;
			$file = $dir . $filename;
			
			// copying
			if (move_uploaded_file($_FILES['file']['tmp_name'], $file)) {
				$s3 = AWS::get('s3');
				$store = $s3->putObject(array(
					'Bucket' => 'esbox-email-images',
					'Key' => $filename,
					'SourceFile' => $file,
					'ACL' => 'public-read',
				));
				if (!empty($store['ObjectURL'])) {
					
					//delete local file
					if (file_exists($file)) unlink($file);
					
					// displaying file
					$array = array(
						'filelink' => $store['ObjectURL']
					);
					echo stripslashes(json_encode($array));
				}
			}
		}
	}