<?php

try {
    var_dump(strncasecmp("", "", -1));
} catch (\ValueError $e) {
    echo $e->getMessage() . \PHP_EOL;
}

var_dump(strncasecmp("aef", "dfsgbdf", 0));
var_dump(strncasecmp("aef", "dfsgbdf", 10));
var_dump(strncasecmp("qwe", "qwer", 3));
var_dump(strncasecmp("qwerty", "QweRty", 6));
var_dump(strncasecmp("qwErtY", "qwer", 7));
var_dump(strncasecmp("q123", "Q123", 3));
var_dump(strncasecmp("01", "01", 1000));

?>