3v4l.org

run code in 500+ PHP versions simultaneously
<?php echo mb_strlen('òàùè', 'ASCII'), PHP_EOL, mb_strlen('òàùè', 'UTF-8');
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.6
8 4
preferences:
60.72 ms | 979 KiB | 4 Q