3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i=1; $j=1; $n=24;// upto which no to be displayed while($i < $n) { if($j % 2 != 0) { echo "\t".$i."\t\t".($i+1)."\t\t".($i+2)."\n"; $i = $i+3; } else { echo $i."\t\t".($i+1)."\t\t".($i+2)."\t\t".($i+3)."\n"; $i = $i+4; } $j++; }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

preferences:
228.6 ms | 406 KiB | 355 Q