- Output for 8.1.32, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.13
- Invalid input: UTF-8 that is not in ASCII:
<?php
// Use descriptive replacement
mb_substitute_character('none');
$badAscii = 'Invalid input: ' . chr(0x81);
print mb_convert_encoding($badAscii, 'UTF-8', 'ASCII');
print "\n";
$utf8 = 'UTF-8 that is not in ASCII: €';
print mb_convert_encoding($utf8, 'ASCII', 'UTF-8');