<div class="row">
					<form role="form" class="form-horizontal" id="form" method="post" onSubmit="return false;">  
						<div class="form-group">
						  <div class="col-md-12">
							<div class="input-group">
							  <input type="text" name="link" id="link" value="주소" class="form-control" autofocus>
							  <div class="input-group-btn">
								<button type="submit" id="submit" class="btn btn-info">Link</button>
 
 
							  </div>
							</div>
						  </div>
						</div>
					</form>
					
					<div class="col-md-6 col-md-offset-3" id="demo"></div>
				</div>
			</div>
 
		</div>
	</div>
</div>
<script type="text/javascript">
$(document).ready(function(){
	$("#submit").click(function(){
		$("#submit").addClass('disabled');
		$("#listLink").html('<i class="fa fa-spinner fa-pulse"></i>');
		var form = $('#form')[0];
		var formData = new FormData(form);
		$.ajax({
			url: "get.php",
			type: "POST",
			data:  formData,
			contentType: false,
			cache: false,
			processData:false,
		  success: function(rs)
		  {
			res = JSON.parse(rs);
			if(res.success){
 
 
get.php
 
<?php
if (isset($_POST['link'])) {
	$link = $_POST['link'];
	$link = trim($link);
	$convertLink = convertLink($link);