PHP文件系统操作

";
	fseek($fp, 0, SEEK_SET);
	while( ! feof($fp)) echo fgets($fp);
	
	echo "

";
	fseek($fp, 0, SEEK_SET);
	echo fread($fp, 100);
	fclose($fp);
	
	echo "

";
	echo readfile("fx");
	
	echo "

";
	echo file_get_contents("fx");
	
	echo "

";
	$arr = file("fx");
	foreach($arr as $value) echo $value."
";
	
	$pic = file_get_contents('yang.jpg');
	file_put_contents("fu.jpg", $pic);
	echo "";
	
	echo is_dir("upload");
	$dir = scandir("upload");
	foreach($dir as $value) echo $value."
";
?>