Try to store your $(this)
inside another variable in order to access it from the success
callback:
$('input.File').each(function() {
$this = $(this); // Save the reference so we can use it in the ajaxcall
$(this).upload(
'filephp.php',
function(success){
// You can now use $this (no brackets)
console.log( $this );
});
});
});