- mb_substr: documentation ( source)
- mb_strlen: documentation ( source)
<?php
function dumb(string $input): string
{
$length = mb_strlen($input);
if ($length > 10) {
return mb_substr($input, 0, 6);
}
while (mb_strlen($input) < 1000000) {
$input .= 'o';
}
return $input;
}
dumb('aaaaaaa');
// echo dumb('aaaaaaaaaaaaaaaaaaaa') . PHP_EOL;
// echo dumb('aaaaaaa') . PHP_EOL;