php $FILES is empty
<p>i try to insert a row to db with php and jquery</p>

<p>I have this code</p>

<pre><code>$.post('/json/management/AddArtistAjax', 
    {
       "artistName": $("#nameSurnameID").val()
            ,
            "Country": $("#country").val()
            ,
            "bDate" :  $("#demo1").val()
            ,
            "dDate" :  $("#demo2").val()
            ,
            "bio" : $("#bioID").val()


    },
    function(response){
            alert(response);
        });
</code></pre>

<p>I can send php side all of above.However, i cannot send files to php side</p>

<p>print_r($_FILES) array is empty why ? </p>
