FRONT
  <?php
$post = 'name='.$name;////(set name above))

           $url = "#######/Middle/chooseTestMiddle.php";

             $ch = curl_init();//initialize

             curl_setopt($ch, CURLOPT_URL, $url);
             curl_setopt($ch, CURL_POST, true); //true = 1
              curl_setopt($ch, CURLOPT_POSTFIELDS, $post);//post is the date of name value pair
              curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);//get data bak = true

             $response = curl_exec($ch); //execute and get back data

              curl_close($ch);// close all curl connections

$a = json_decode($response);

var_dump($a);

?>

<?php


       // $result = $a[0][0];
       // $onoroff = $a[1];

       // echo $result;

        if(mysqli_num_rows($result)>0)
        {
            while($row = mysqli_fetch_assoc($result))
          {
          echo '<form action="takeTest.php" method = "post" role="form"><button '.$onoroff.' class="btn-xl btn-info" id="box" type="submit" name = "submit"><input type="hidden" name = "theExam" value ="'.$row[ExamName].'"></input><span style="font-size:40px; font-family: kodakku;" >'.$row[ExamName].'</span></button></form><br />';
           }
        }
        ?>

BACK

<?php
include ('dbconnect.php');

$name = $_POST['name'];


				$a = "SELECT *
         FROM studentExams
         WHERE Username = '$name'";
        $b = mysqli_query($dbCon, $a);
        $c = mysqli_fetch_row($b);

				 $allPoints = $c[2]; //there is an answer1

     if ($allPoints != "")
      $onoroff = "disabled";
    else
      $onoroff = " ";


        $sql = "SELECT ExamName FROM teacherExams";
        $result = mysqli_query($dbCon, $sql);

        $theArray = array($result, $onoroff);
        echo json_encode($theArray);


?>