3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = ord('a'); do { echo $i . " - " . chr($i) . "\n"; } while ($i++ < ord('f') + 1 );
Output for 5.6.0 - 5.6.27, 7.0.0 - 7.0.20, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
97 - a 98 - b 99 - c 100 - d 101 - e 102 - f 103 - g
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 97 - a 98 - b 99 - c 100 - d 101 - e 102 - f 103 - g
preferences:
170.37 ms | 402 KiB | 191 Q