Question re Excel to MYSQL to HTML

<?php
function read_csv($csv_file, $index_by = 0, $separator = ';', $rec_len = 1024)
{
   $handle = fopen($csv_file, 'r');
   if($handle == null || ($data = fgetcsv($handle, $rec_len, $separator)) === false)
   {
       // Couldn't open/read from CSV file.
       return -1;
   }

   $names = array();
   foreach($data as $field)
   {
       $names[] = trim($field);
   }

   if(is_int($index_by))
   {
       if($index_by < 0 || $index_by > count($data))
       {
           // Index out of bounds.
           fclose($handle);
           return -2;
       }
   }
   else
   {
       // If the column to index by is given as a name rather than an integer, then
       // determine that named column's integer index in the $names array, because
       // the integer index is used, below.
       $get_index = array_keys($names, $index_by);
       $index_by = $get_index[0];

       if(is_null($index_by))
       {
           // A column name was given (as opposed to an integer index), but the
           // name was not found in the first row that was read from the CSV file.
           fclose($handle);
           return -3;
       }
   }

   $retval = array();
   while(($data = fgetcsv($handle, $rec_len, $separator)) !== false)
   {
       $retval[trim($data[$index_by])] = array_combine($names, $data);
   }
   fclose($handle);

   return $retval;
}
?>

<?php
$data = read_csv('file.csv');
echo $data['1']['header'];//the first cell from the "header" column 
?>