PHP Cant read file with special chars

Question

I'm loading a file by this script:

$hFile = fopen($sFile, "r");
$sContent = "";

while(!feof($hFile)) {
    $sContent .= fread($hFile, 4096);
}

fclose($hFile);

It works as it should do, but i tried to load a file called test.txt which contains the following string: <>863b?)(/&(§&/))!)!=WLKM! K!*ÜQWW!W3³³w2_:LPE <>863b?)(/&(§&/))!)!=WLKM! K!*ÜQWW!W3³³w2_:LPE

The variable $sContent now doesn't contain anything.

Answer 1

$html = mb_convert_encoding($html, "UTF-8");

首先要执行此操作，然后再写入文件。