Untitled

$.post({
                    url: 'upload.php', // point to server-side PHP script
                    dataType: 'text', // what to expect back from the PHP script
                    cache: false,
                    contentType: false,
                    processData: false,
                    data: {action: 'enviar', form: form_data}, //quero passar assim, mais de um parametro, o form_data seria o file.
                    type: 'post',
                    success: function (response) {
                        $('#msg').html(response); // display success response from the PHP script
                    },
                    error: function (response) {
                        $('#msg').html(response); // display error response from the PHP script
                    }
                });
            });
        });
    </script>
</head>
<body>
    <h1>Single File Upload Example using PHP</h1>
    <p id="msg"></p>
    <input type="file" id="file" name="file" />
    <button id="upload">Upload</button>
</body>