Write a PHP program to print out the multiplication table upto 6*6

<?php
for ($i = 1; $i < 7; $i++) {
  for ($j = 1; $j < 7; $j++) {
     if ($j == 1) {
       echo str_pad($i*$j, 2, " ", STR_PAD_LEFT);
     } else {
       echo str_pad($i*$j, 4, " ", STR_PAD_LEFT);
     }
  }
  echo "\n";
}
?>

Sample Output:

1   2   3   4   5   6                                      
 2   4   6   8  10  12                                      
 3   6   9  12  15  18                                      
 4   8  12  16  20  24                                      
 5  10  15  20  25  30                                      
 6  12  18  24  30  36