求助: PHP水印
帮忙看看怎么老是爆错，imagettfbbox() : Invalid font filenameMessage: Undefined offset: 1
Filename: controllers/waterImage.php
Line Number: 194
都没有offset，怎么回事？
[ 本帖最后由 heroicq 于 2008-9-28 11:36 编辑 ] controller文件：
<?php
class waterImage extends Controller {
function waterImage()
{
parent::Controller();
$this->load->helper ( 'url' );
}
function imageWaterMark($groundImage,$waterPos=0,$waterImage="",$waterText="",$textFont=5,$textColor="#FF0000")
{
$isWaterImage = FALSE;
$formatMsg = "暂不支持该文件格式，请用图片处理软件将图片转换为GIF、JPG、PNG格式。";
//读取水印文件
if(!empty($waterImage) && file_exists($waterImage))
{
$isWaterImage = TRUE;
$water_info = getimagesize($waterImage);
$water_w = $water_info;//取得水印图片的宽
$water_h = $water_info;//取得水印图片的高
switch($water_info)//取得水印图片的格式
{
case 1: $water_im = imagecreatefromgif($waterImage);break;
case 2: $water_im = imagecreatefromjpeg($waterImage);break;
case 3: $water_im = imagecreatefrompng($waterImage);break;
default:die($formatMsg);
}
}
//读取背景图片
if(!empty($groundImage) && file_exists($groundImage))
{
$ground_info = getimagesize($groundImage);
$ground_w = $ground_info;//取得背景图片的宽
$ground_h = $ground_info;//取得背景图片的高
switch($ground_info)//取得背景图片的格式
{
case 1: $ground_im = imagecreatefromgif($groundImage);break;
case 2: $ground_im = imagecreatefromjpeg($groundImage);break;
case 3: $ground_im = imagecreatefrompng($groundImage);break;
default:die($formatMsg);
}
}
else
{
die("需要加水印的图片不存在！");
}
//水印位置
if($isWaterImage)//图片水印
{
$w = $water_w;
$h = $water_h;
$label = "图片的";
}
else//文字水印
{
$temp = imagettfbbox(ceil($textFont*5),0,"./arial.ttf",$waterText);//取得使用 TrueType 字体的文本的范围
$w = $temp - $temp;
$h = $temp - $temp;
unset($temp);
$label = "文字区域";
}
if( ($ground_w<$w) || ($ground_h<$h) )
{
echo "需要加水印的图片的长度或宽度比水印".$label."还小，无法生成水印！";
return;
}
switch($waterPos)
{
case 0://随机
$posX = rand(0,($ground_w - $w));
$posY = rand(0,($ground_h - $h));
break;
case 1://1为顶端居左
$posX = 0;
$posY = 0;
break;
case 2://2为顶端居中
$posX = ($ground_w - $w) / 2;
$posY = 0;
break;
case 3://3为顶端居右
$posX = $ground_w - $w;
$posY = 0;
break;
case 4://4为中部居左
$posX = 0;
$posY = ($ground_h - $h) / 2;
break;
case 5://5为中部居中
$posX = ($ground_w - $w) / 2;
$posY = ($ground_h - $h) / 2;
break;
case 6://6为中部居右
$posX = $ground_w - $w;
$posY = ($ground_h - $h) / 2;
break;
case 7://7为底端居左
$posX = 0;
$posY = $ground_h - $h;
break;
case 8://8为底端居中
$posX = ($ground_w - $w) / 2;
$posY = $ground_h - $h;
break;
case 9://9为底端居右
$posX = $ground_w - $w;
$posY = $ground_h - $h;
break;
default://随机
$posX = rand(0,($ground_w - $w));
$posY = rand(0,($ground_h - $h));
break;
}
//设定图像的混色模式
imagealphablending($ground_im, true);
if($isWaterImage)//图片水印
{
imagecopy($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h);//拷贝水印到目标文件
}
else//文字水印
{
if( !empty($textColor) && (strlen($textColor)==7) )
{
$R = hexdec(substr($textColor,1,2));
$G = hexdec(substr($textColor,3,2));
$B = hexdec(substr($textColor,5));
}
else
{
die("水印文字颜色格式不正确！");
}
imagestring ( $ground_im, $textFont, $posX, $posY, $waterText, imagecolorallocate($ground_im, $R, $G, $B));
}
//生成水印后的图片
@unlink($groundImage);
switch($ground_info)//取得背景图片的格式
{
case 1:imagegif($ground_im,$groundImage);break;
case 2:imagejpeg($ground_im,$groundImage);break;
case 3:imagepng($ground_im,$groundImage);break;
default:die($errorMsg);
}
//释放内存
if(isset($water_info)) unset($water_info);
if(isset($water_im)) imagedestroy($water_im);
unset($ground_info);
imagedestroy($ground_im);
}
/**
* 上传图片
*
*/
function water(){
$this->load->view("addwater");
}
/**
* 添加水印(test)
*
*/
function testWater(){
$id=count($_FILES['userfile']);
$num = count($_FILES['userfile']['name']);
print_r($_FILES['userfile']);
print_r($_FILES['userfile']['name']);
echo $num;
echo "<br>";
if(isset($id)){
for($i=0;$i<$id;$i++){
if(isset($_FILES) && !empty($_FILES['userfile']) && $_FILES['userfile']['size']>0)
{
$uploadfile ="images/".time()."_".$_FILES['userfile']['name'][$i];
echo "<br>";
echo $_FILES['userfile']['name'][$i].'<br>';
echo $uploadfile.'<br>';
echo $_FILES['userfile']['tmp_name'][$i];
//fopen($uploadfile,"wb");
if (move_uploaded_file($_FILES['userfile']['tmp_name'][$i], $uploadfile))
{
echo "OK<br>";
//文字水印
$this->imageWaterMark($uploadfile,5,"","HTTP://www.lvye.info",5,"#cccccc");
//图片水印
//$waterImage=base_url()."images/logo.gif";//水印图片路径
//$this->imageWaterMark($uploadfile,9,$waterImage,"",5,"#cccccc");
echo "<img src=\"".$uploadfile."\" border=\"0\">";
}
else
{
echo "Fail<br>";
}
}
}
}
}
}
?> view文件：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title> PHP 水印 </title>
</head>
<body>
<form enctype="multipart/form-data" method="POST" action="testWater">
<?php
$id = 1;
for($a=0; $a<$id; $a++){
echo "文件: <input name=\"userfile[]\" type=\"file\"><br>";
}
?>
<input type="submit" value="上传">
</form>
</body>
</html> 原帖由 heroicq 于 2008-9-28 11:32 发表 http://codeigniter.org.cn/forums/images/common/back.gif
帮忙看看怎么老是爆错，imagettfbbox() : Invalid font filename
Message: Undefined offset: 1
Filename: controllers/waterImage.php
Line Number: 194
都没有offset，怎么回事？ ...
看到这个 Invalid font filename 没有，是说你的字体文件无效，或者路径不对，你自己检查一下先． 我把字体放在system/fonts下，应该没错，有默认CI自带的，有从windows下复制过来的，都是 Invalid font filename ,这样写 "./arial.ttf", ".arial.ttf","arial.ttf",都不行。
offset也不知道哪出错了 waterImage.php 194 是什么内容？ 就是在本来页面中的194行啊，反正找不到offset就是了，不知道哪错了 你还是得检查 Invalid font filename
这肯定是你的服务器的问题，重装 PHP :Q找不到有用的呢。。郁闷ING 路径错误，./在CI里面是指index.php所在目录
要用./system/fonts/xxx.ttf
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