title: How to get blob data in php?
body: <p>Blob is sound blob data.</p>
  
  <pre><code>var fd = new FormData();
  fd.append('fname', 'test.wav');
  fd.append('data', blob);
  $.ajax({
      type: 'POST',
      url: 'upload.php',
      data: fd,
      processData: false,
      contentType: false
  }).done(function(data) {
         console.log(data);
  });
  </code></pre>
  
  <p>How to get "data" in upload.php?</p>