Create table with PHP checking with before value and current value (Array)

Question

This is my data table1. I want this table change to as a table2. I have to use PHP for this. I wrote the some code using foreach but that is not working properly. C

Answer 1

This would be your table design: (https://jsfiddle.net/vg3whzvq/2/)

      

        
SeqNo
        
Student Id
        
maths
        
art
        
        

        
Exam 1
        
Exam 2
        
Exam 1
        
Exam 2
      
          

        
1
        
200301
        
51
        
25
        
64
        
45
      
    

Now to display the data with php you can do something like that:

$output .= "";

          $studentCounter = 0;

foreach($result as $item)
            {
            $output .= "";
            }

 $output .= "

          

            
SeqNo
            
Student Id
            
maths
            
art
            
            

            
Exam 1
            
Exam 2
            
Exam 1
            
Exam 2
          

                          
" . ++$studentCounter . " 
  
                          
" . $item[STUDENT_ID] . "
                          
" . $item[MATHS_EXAM_1] . "
 
                          
" . $item[MATH_EXAM_2] . "
                          
" . $item[ART_EXAM_1] . "
                          
" . $item[ART_EXAM_2] . "
                        
";

It now depends on how your $result looks like.