3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = quoted_printable_decode('Piotr Iksi=F1ski'); echo mb_check_encoding($test, 'UTF-8') ? "valid:" : "invalid:"; echo mb_detect_encoding($test, 'ASCII,UTF-8', true) ?: 'false';
Output for 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 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
invalid:false
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 invalid:false
preferences:
172.52 ms | 402 KiB | 156 Q