3v4l.org

run code in 300+ PHP versions simultaneously
<?php $slideshow = [ 'images/1.png', 'images/2.png', 'images/3.png', ]; foreach ($slideshow as $key => $slide) { $key++; echo $key . "\n"; echo $slide . "\n\n"; }
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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 - 8.4.12
1 images/1.png 2 images/2.png 3 images/3.png
preferences:
65.33 ms | 407 KiB | 5 Q