- mb_substr: documentation ( source)
- mb_strlen: documentation ( source)
- str_repeat: documentation ( source)
<?php
function dumb(string $input): string
{
$length = mb_strlen($input);
if ($length > 10) {
return mb_substr($input, 0, 6);
}
return $input . str_repeat('o', 12 - $length);
}
echo dumb('aaaaaaaaaaaaaaaaaaaa') . PHP_EOL;
echo dumb('aaaaaaa') . PHP_EOL;