您要么需要将变量用作数组:
while($row = mysqli_fetch_array($resultNEM)){ $myEMPNEM = array($row['first_name'], $row['middle_name'], $row['last_name']); }或将这些值连接到一个字符串中:
while($row = mysqli_fetch_array($resultNEM)){ $myEMPNEM = $row['first_name'] . " " . $row['middle_name'] . " " . $row['last_name'];}


