symfony - Symfony2 UploadedFile::guessExtension() for XML -

I'm having trouble with extensions for XML files uploaded I tried getExtension () (Empty string returns), estimationExtension () and guessClientExtension () (both returns NULL ).

Am I just a hardcode extension (I know that it should always be XML) or is there any way to get it? I think the uploaded file has a mm type text / xml when I upload a .txt file, this extension is cured.

Maybe I'm getting the upload file wrong?

  $ request = $ this- & gt; GetRequest (); $ Form = $ this- & gt; CreateForm (new file type type), empty, ['em' => $ this-> getDoctrine () - & gt; getManager ()]); $ Form & gt; ($ Request) deposit; If ($ form-> isValid ()) {$ file = null; // @ War $ file \ Symfony \ Component \ HttpFoundation \ File \ UploadedFile foreach ($ request-> Files as $ file) {$ file = $ file ['file']; break; } Var_dump ($ file-> EstimateExchange ()); }  

thanks

getting it from the uploaded $ Try File-> getFilename () Then you can extract the extension using:

prefix = pathinfo ($ file-> getFilename (), PATHINFO_EXTENSION);

in php docs: