<?php  
require_once "../vendor/autoload.php"; 
if (input('submit')) { 
     
    //Check whether the request ajax/xhr? 
    //var_dump(is_ajax()); 
    //echo "<br>"; 
    if (input('q')) { 
        echo '<div class="container">'.input('q').'</div>'; 
    } 
} 
?> 
<head> 
  <title>PHP Input class example</title> 
  <meta charset="utf-8"> 
  <meta name="viewport" content="width=device-width, initial-scale=1"> 
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"> 
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> 
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script> 
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script> 
</head> 
<div class="container"> 
  <form method="post"> 
    <div class="form-group"> 
      <label for="comment">Comment:</label> 
      <textarea class="form-control" rows="5" name='q'></textarea> 
      <br> 
      <input type='submit' name='submit' class="btn btn-success" value='Submit' /> 
    </div> 
  </form> 
</div>
 
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