How to implement Star pattern in php

In interview, interviewer asked me to write program for star pattern. it was just to check my logic. in this post I am sharing this program.

Inner loop prints line wise and outer loop prints column wise.

<?php
           for($i = 0; $i < 10 ; $i++){
                 for($j = 0; $j <= $i ; $j++){
                       echo '*';
                 }
                 echo '<br/>';
            }
?>

Output of the above code will be

*
**
***
****
*****
******
*******
********
*********
**********

For reverse star pattern click here