3v4l.org

run code in 300+ PHP versions simultaneously
<?php $qwe = 1; for($i = 1, $j = 0; $i >= 10, $i <= 50; $j += $i, print $i, $i++){echo $qwe++,'<br>';}
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 - 7.1.33, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
1<br>12<br>23<br>34<br>45<br>56<br>67<br>78<br>89<br>910<br>1011<br>1112<br>1213<br>1314<br>1415<br>1516<br>1617<br>1718<br>1819<br>1920<br>2021<br>2122<br>2223<br>2324<br>2425<br>2526<br>2627<br>2728<br>2829<br>2930<br>3031<br>3132<br>3233<br>3334<br>3435<br>3536<br>3637<br>3738<br>3839<br>3940<br>4041<br>4142<br>4243<br>4344<br>4445<br>4546<br>4647<br>4748<br>4849<br>4950<br>50

preferences:
234.57 ms | 406 KiB | 338 Q