随时给自己贴的图片加文字的php水印

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随时给自己贴的图片加文字
<?
Header( "Content-type: image/jpeg");
function makethumb($srcFile,$text,$size=12,$R=0,$G=0,$B=0) {
if(!$text){
$text='welcome xs.net.ru xayle';
$size=20;
$R=255;
}
$data = GetImageSize($srcFile,&$info);
switch ($data[2]) {
case 1: //图片类型，1是GIF图
$im = @ImageCreateFromGIF($srcFile);
break;
case 2: //图片类型，2是JPG图
$im = @imagecreatefromjpeg($srcFile);
break;
case 3: //图片类型，3是PNG图
$im = @ImageCreateFromPNG($srcFile);
break;
}
$srcW=ImageSX($im);
$srcH=ImageSY($im);
$ni= imagecreatetruecolor($srcW,$srcH);
imagecopyresampled($ni,$im,0,0,0,0,$srcW,$srcH,$srcW,$srcH);
$font = "2.ttf";
$textcolor = imagecolorallocate($ni,$R,$G,$B); // Set text color
$i=0;
$txt='';
$len=ceil((12*22)/$size);
$lgg=ceil(($size*16)/12)-1;
while(strlen($txt)>0||!$i){
$start=$len*$i;
$kk=ceil($size*13/12);
//$kk=13;
$txt=substr($text, $start, $len);
$hei=$i*$lgg+$kk;
imagettftext($ni,$size, 0, 8, $hei, $textcolor, $font, $txt); // Write the text with a font
$i++;
}
ImageJpeg($ni);
}
if(!$size||$size<1)$size=12;
makethumb("face.jpg",$text,$size,$R,$G,$B);
?>

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