php's file_exists is returning false for file name having foreign language characters

Question

$file_name = "x:/htdocs/host/sales_documents/testvilkår, webhotell og domenenavn_2ccda.pdf";

if(!file_exists($file_name))
{   
    echo "<h2>404 Error</h2>";
    exit;
}

File name is a valid file and also it really exist, but still file_exists is returning false.
Can you tell me what is a reason behind it?

Answer 1

check your file path. your code is ok.

Answer 2

Change slashes to constant DIRECTORY_SEPARATOR and add file:// to path.