password hashing doesn't work for all special characters

You need to base64_encode them first.

PHP Code:

$stored = password_hash(
    base64_encode(
        hash('sha256', $_POST['password'], true)
    ),
    PASSWORD_DEFAULT
);
// ...
if (password_verify(
    base64_encode(
        hash('sha256', $_POST['password'], true)
    ),
    $stored
)) {
    // Success :D
} else {
    // Failure :(
} 


SEE: Implementing Secure User Authentication in PHP Applications with Long-Term Persistence (Login with "Remember Me" Cookies)

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