PHPдÈëWRITE±àÂëΪUTF8µÄÎļþµÄʵÏÖ´úÂë

<?php 
$f=fopen("test.txt", "wb"); 
$text=utf8_encode("îš!"); 
// adding header 
$text="\xEF\xBB\xBF".$text; 
fputs($f, $text); 
fclose($f); 
?>