(A) The function is defined this way near the top of your php file:
<?php
   function displayRows($resultSet)
   {   // put the while loop in the hint php file here
       // to loop over $resultSet.  But do not use print or echo
       // but build up a $rows by concatinating the html code
       // into it.  For example
       //     $rows = $rows .  "  <th> $field  </th>\n"; 
       // The function will return($rows); at the end
   }
?>

(B) Your php page will then open a database, do a query.  Any query
is OK.

    "SELECT * FROM PWANG_TABLE"
    "SELECT name, address FROM RLAU_TABLE"
    "SELECT item, price, shipping FROM Another_TABLE"

Then do
    $resultSet = @mysql_query($query, $link);  // $resultSet may be null

(C) To display table do
    print "<table border='1'>\n";
    print displayRows($resultSet); 
    print "</table>";