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<form action="panduan.php" method="POST">

?? ???? ??: <br/>

<input type="text" name="grades">

< ;input type="submit" value="??">

</form>

<?php

$grades=$_POST['grades'];

if(is_numeric($grades) ) {

if($grades>=0&&$grades<60){

echo '??';

}else if($grades>=60&&$grades<70){

echo '??? ????';

}else if($grades>=70&&$grades<80){

echo '??? ??';

}else if($grades>=80&&$grades<90){

echo '??? ????. ????? ';

}else if($grades>=90&&$grades<100){

echo '???? ??? ????';

}else if($grades==100){

echo 'More ??? ????';

}else if($grades>100){

echo '?????? ??????, Smecta! ';

}

}else{

echo '???? ???? 0?? ????. ??? ??? ??????. ';

}

?>