3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "I'm a string "; $i = 34; $t = $s . $i; echo $t, PHP_EOL;
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.30, 8.0.0 - 8.0.20, 8.1.0 - 8.1.7
I'm a string 34

preferences:
43.42 ms | 409 KiB | 5 Q