[](http://www.uploadify.com) # fileDataName Input Type:**string** Input Format:**'someString'** Default:**'Filedata'** Required:**optional** The **fileDataName** option sets the name of the file input that the flash file uses when uploading the files. This value is used for referencing the files that have been uploaded in your back-end script. For example, if you set the value of **fileDataName** to 'uploadify', you would reference the uploaded files as **$_FILES['uploadify']** in your PHP script. ### Demo Javascript Code 1. $('#file_upload').uploadify({ 1.   'uploader'     : '/uploadify/uploadify.swf', 1.   'script'       : '/uploadify/uploadify.php', 1.   'cancelImg'    : '/uploadify/cancel.png', 1.   'folder'       : '/uploads', 1.   'fileDataName' : 'Filedata' 1. }); HTML Code 1. <inputtype="file"id="file_upload"name="file_upload"/> 1. <ahref="javascript:$('#file_upload').uploadifyUpload();">Upload Files</a> [Upload Files](#) [](#) Help keep Uploadify free and support the development of other excellent apps!  [home](#)  |  [about](#)  |  [download](#)  |  [demos](#)  |  [documentation](#)  |  [faqs](#)  |  [forums](#) ©2011 by [Reactive Apps](http://www.reactiveapps.com)