nested loops making pattern

[eddieadams]

1

12

123

12345

2

23

234

2345

3

34

345

4

45

5

 

Nested loops? Or can this be done simpler.

 

5+4+3+2+1 = 14 possible combinations

 

[.josh]

depending on what you're really wanting to do with this, it might have to be altered a bit, but the hard part is there.

 

<?php
  $num = 5;
  $pos = 1;
  for ($a = 1; $a <= $num; $a++) {
    while ($pos <= $num) {
      for ($b = $a; $b <= $pos; $b++) {
        echo $b;
      }
      echo "<br/>";
      $pos++;
    }
    $pos = 1;
  }
?>