无法从PHP中的表单中获取数据

Not able to fetch $fnamef and $lnamel from form!!!

PLease help here is my code: i take values from form in an array as team of members and want to store it in database

    $fname=$_REQUEST['name'];
    $lname=$_REQUEST['last'];
    $cnct=$_REQUEST['ph'];
    $email=$_REQUEST['email'];
    $sem=$_REQUEST['semester'];
    $dept=$_REQUEST['dept'];
    $event=$_REQUEST['event'];
    $tno=$_REQUEST['tno'];
    $tname=$_REQUEST['namet'];
    $fnamef=array();
    $lnamel=array();
    for($m=0;$m<$tno;$m++)
    {
        $fnamef[$m]=$_REQUEST['f'.($m+1)];
        $lnamel[$m]=$_REQUEST['l'.($m+1)];
    }
    for($m=0;$m<$tno;$m++)
    {
        echo $fnamef[$m];
        echo $lnamel[$m];
    }

    echo $tname;
    echo $tno;
    echo $fname;
    echo $lname;
?>

I am not sure what is it so i can't able to explain it, but as per your comments here is the solution and mentioned what i have changed in this code:

$fname=$_REQUEST['name'];
$lname=$_REQUEST['last'];
$cnct=$_REQUEST['ph'];
$email=$_REQUEST['email'];
$sem=$_REQUEST['semester'];
$dept=$_REQUEST['dept'];
$event=$_REQUEST['event'];
$tno=$_REQUEST['tno'];
$tname=$_REQUEST['namet'];

$fnamef=array();
$lnamel=array();


for($m=0;$m<$tno;$m++)
{
    $fnamef[$m] = 'f'.($m+1); // only change this part
    $lnamel[$m] = 'l'.($m+1); // only change this part
}
for($m=0;$m<$tno;$m++)
{
    echo $fnamef[$m] . "<br>";
    echo $lnamel[$m] . "<br>";
}

echo $tname . "<br>";
echo $tno . "<br>";
echo $fname . "<br>";
echo $lname . "<br>";