<?php
if(!empty($_POST['submit'])){
     if (isset($_POST['reportType'])){
        $reportType = mysqli_real_escape_string($connection, $_POST['reportType']);
      //Also tried $reportType = $_POST['reportType']
    }

}
?>`

<form method="post" action="" class="reportForm">

<select name="reportType" class="form-control" id=reportType>
     <option value="Users">Users</option>
     <option value="Medicine">Medicines</option>
     <option value="Pharmacies">Pharmacies</option>
     <option value="Reviews">Reviews</option>
</select>

<div class="form-group col-md-2">
    <input type="submit" id="reports" value="Generate Report">
 </div>

<?php

                if($reportType == "Users"){

            //This is where I'm getting the error but nothing's posting anyway
}
?>