<?php
$str_utf8 = 'Qпароль11';
$login = $str_utf8;//iconv('UTF-8', 'Windows-1251', $str_utf8);
$password = $str_utf8; //iconv('UTF-8', 'Windows-1251', $str_utf8);
if (preg_match('#.#u', $login)) { $login = iconv('UTF-8', 'CP1251', $login); }
if (preg_match('#.#u', $password)) { $password = iconv('UTF-8', 'CP1251', $password); }
var_dump($login);
var_dump($password);
$login = iconv('UTF-8', 'Windows-1251', $str_utf8);
$password = iconv('UTF-8', 'Windows-1251', $str_utf8);
if (preg_match('#.#u', $login)) { $login = iconv('UTF-8', 'CP1251', $login); }
if (preg_match('#.#u', $password)) { $password = iconv('UTF-8', 'CP1251', $password); }
var_dump($login);
var_dump($password);
preferences:
30 ms | 402 KiB | 5 Q