3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($x=0;$x<23;$x++) { var_dump($x / 2+1); #$bla= round($x /2); #echo $bla."\n"; }
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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
int(1) float(1.5) int(2) float(2.5) int(3) float(3.5) int(4) float(4.5) int(5) float(5.5) int(6) float(6.5) int(7) float(7.5) int(8) float(8.5) int(9) float(9.5) int(10) float(10.5) int(11) float(11.5) int(12)

preferences:
224.16 ms | 406 KiB | 323 Q