3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 1; echo '<input type="checkbox" name="pozycja'.$i.'" value="1">';
Output for 5.6.0 - 5.6.29, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
<input type="checkbox" name="pozycja1" value="1">
preferences:
175.02 ms | 404 KiB | 223 Q