3v4l.org

run code in 300+ PHP versions simultaneously
<?php $num = 3; for($r=1; $r<=$num; $r++) { for($sp=$num-$r; $sp>0; $sp--) printf(" "); for($c=$r; $c>=1; $c--) echo("*"); echo("\n"); }
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.13
* ** ***
preferences:
165.32 ms | 408 KiB | 5 Q