3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function odd($limit){ $row=1; $current_number=1; while($current_number<=$limit){ for($i=1;$i<=$row;$i++){ echo $current_number." "; $current_number=$current_number+2;//incrementing numbers by 2 if you want to increment by 1 i.e print all numbers replace 2 by 1 } $row++; echo "\n";//for new line use <br/> } } odd(20); ?>
Output for 4.3.0 - 7.2.0
1 3 5 7 9 11 13 15 17 19