<div class="ibox-title">
                                <h5>Remove a sensor<small> from an available sensor board </small></h5>
                            </div>
                            <div class="ibox-content">

                                <form method="post" action="php/DeleteSensor.php" class="form-horizontal">

                                    <div class="form-group"><label class="col-sm-2 control-label">Select Board</label>
                                        <div class="col-sm-10">
                                            <select class="form-control m-b" name="sensor">
                                                <option disabled selected>- Select a sensor -</option>
                                                <?php 
$sensorController = new SensorController();
$sensors = $sensorController->selectAll();
foreach ($sensors as $sensor) {
    $sensorTypeController = new SensorTypeController();
    $sensor_type = $sensorTypeController->selectByID($sensor->getSensorType());
    $sensorBoardController = new SensorBoardController();
    $sensorBoard = $sensorBoardController->selectByID($sensor->getSensorBoardId());
    $locationController = new LocationController();
    $loc = $locationController->getLocationByID($sensorBoard->getLocationId());
    echo '<option value="' . $sensor->getIdsensor() . '">' . 'Sensor ' . $sensor->getIdsensor() . ' - ' . $sensor_type->getTypeName() . ' sensor of board ' . $sensor->getSensorBoardId() . ' at ' . $loc->getLocationName() . ', ' . $loc->getLocationCity() . ' (' . $loc->getLatitude() . ', ' . $loc->getLongitude() . ')' . '</option>';
}
?>

                                            </select>
                                        </div>
                                    </div>

                                    <div class="form-group">
                                        <div class="col-sm-4 col-sm-offset-2">
$sensorBoardController = new SensorBoardController();
$sensorBoards = $sensorBoardController->selectAll();
foreach ($sensorBoards as $sensorBoard) {
    echo '<option value="' . $sensorBoard->getIdsensorBoard() . '">' . $sensorBoard->getIdsensorBoard() . '</option>';
}
?>
                                            </select>
                                        </div>
                                    </div>

                                    <div class="form-group"><label class="col-sm-2 control-label">Select Sensor Type</label>
                                        <div class="col-sm-10">
                                            <select class="form-control m-b" name="sensor_type">
                                                <option disabled selected>- Select Sensor Type -</option>
                                                <?php 
$sensorTypeController = new SensorTypeController();
$sensorTypes = $sensorTypeController->selectAll();
foreach ($sensorTypes as $sensorType) {
    echo '<option value="' . $sensorType->getIdsensorType() . '">' . $sensorType->getTypeName() . '</option>';
}
?>
                                            </select>
                                        </div>
                                    </div>

                                    <div class="form-group" id="data_2">
                                        <label class="col-sm-2 control-label">Manufactured Date</label>
                                        <div class="col-sm-10">
                                            <div class="input-group date">
                                                <span class="input-group-addon"><i class="fa fa-calendar"></i></span>
                                                <input type="text" name="manufactured_date" class="form-control" value="01/20/2016">