Marksheet program Solution in PHP

WAP to create a mark sheet using five different subjects with the following conditions?

1)  all subject marks should be 0 to 100?
2)  If only one subject mark is <33 then the student will supply.
3)  If all subject marks are>33 then the student pass and display division with percentage?
4)  if the minimum of two subject marks is <33 then the student will fail.
5)  if the student is suppl and the mark is >28 then five bonus marks will be added then the student will pass by grace and grace subject name.
6) display distinction subject name
7) display suppl subject name
<?php
$m1=40;
$m2=40;
$m3=94;
$m4=35;
$m5=93;
$s1="PHY";
$s2= "Chem";
$s3="Maths";
$s4="English";
$s5="Hindi";
if(($m1>=0 && $m1<=100) && ($m2>=0 && $m2<=100) && ($m3>=0 && $m3<=100) && ($m4>=0 && $m4<=100) && ($m5>=0 && $m5<=100))
{    
    $c=0;
    $marks=0;
    $sub= "";
    $dist= "";
    if($m1<33)
    {
       $c++;
       $marks=$m1;   
       $sub=$sub.$s1;
    }   
   
    if($m2<33)
     {
       $c++;
       $marks=$m2;   
       $sub=$sub.$s2;
    }
    if($m3<33)
     {
       $c++;
       $marks=$m3;
       $sub=$sub.$s3;   
    }
    if($m4<33)
     {
       $c++;
       $marks=$m4;   
       $sub=$sub.$s4;
    }
    if($m5<33)
     {
       $c++;
       $marks=$m5;   
       $sub=$sub.$s5;
    }
      if($m1>=75)
    {           
       $dist=$dist.$s1;
    }   
   
     if($m2>=75)
    {           
       $dist=$dist.$s2;
    }
     if($m3>=75)
    {           
       $dist=$dist.$s3;
    }
    if($m4>=75)
    {           
       $dist=$dist.$s4;
    }
    if($m5>=75)
    {           
       $dist=$dist.$s5;
    }
   if($c==0 || ($c==1 && $marks>=28))
       {
      $per= ($m1+$m2+$m3+$m4+$m5)/5;
      if($per>33 && $per<45)
      echo "Congratulation you are pass in the third division with $per % ";
      elseif($per<60)
      echo "Congratulation you are pass in the second division with $per % ";
      else
      echo "Congratulation you are pass in first division with $per % ";
      if($c==1)
      echo "You are passing by grace and grace mark is ",33-$marks," grace subject is $sub";
      if($dist!="")
      echo "Distinction subject name is  ",$dist;
       }   
   else if($c==1)
   echo "Try again you are suppl in $sub";
   else
    echo "Sorry you have failed try again next year subject is $sub";   
}
else
echo "All Subject Marks should be 0 to 100";   
?>