<?php

require './db_config.php';

$sql = "SELECT apprenticeid, firstname, lastname, a.groupid, groupname, sex, date_of_birth, date_joined, date_leave ";
$sql .= "FROM apprentice a left join gruppe g on a.groupid = g.groupid ";


$result = $mysqli->query($sql);
if ($result != null)
{
    while($row = $result->fetch_assoc()){
        $json[] = $row;
    }

    $data['apprentice'] = $json;
    $result =  mysqli_query($mysqli,$sql);
    echo json_encode($data);
}
else
    echo json_encode("keine Daten empfangen!");

?>