php 여러 장의 사진 업로드 와 워 터 마크 기법 실현

 
<?php 
function imageWaterMark($groundImage,$waterPos=0,$waterImage="",$waterText="",$textFont=5,$textColor="#FF0000") 
{ 
$isWaterImage = FALSE; 
$formatMsg = "         ，              GIF、JPG、PNG  。"; 
//       
if(!empty($waterImage) && file_exists($waterImage)) 
{ 
$isWaterImage = TRUE; 
$water_info = getimagesize($waterImage); //         
$water_w = $water_info[0];//         
$water_h = $water_info[1];//         
switch($water_info[2])//          
{ 
case 1:$water_im = imagecreatefromgif($waterImage);break; //      PHP         
case 2:$water_im = imagecreatefromjpeg($waterImage);break; //      PHP         
case 3:$water_im = imagecreatefrompng($waterImage);break; //      PHP         
default:die($formatMsg); 
} 
} 
//       
if(!empty($groundImage) && file_exists($groundImage)) 
{ 
$ground_info = getimagesize($groundImage); 
$ground_w = $ground_info[0];//         
$ground_h = $ground_info[1];//         
switch($ground_info[2])//          
{ 
case 1:$ground_im = imagecreatefromgif($groundImage);break; 
case 2:$ground_im = imagecreatefromjpeg($groundImage);break; 
case 3:$ground_im = imagecreatefrompng($groundImage);break; 
default:die($formatMsg); 
} 
} 
else 
{ 
die("           ！"); 
} 
//     
if($isWaterImage)//     
{ 
$w = $water_w; 
$h = $water_h; 
$label = "   "; 
} 
else//     
{ 
$temp = imagettfbbox(ceil($textFont*2.5),0,"c:/windows/fonts/stcaiyun.ttf",$waterText);//     TrueType          
$w = $temp[2] - $temp[6]; 
$h = $temp[3] - $temp[7]; 
unset($temp); 
$label = "    "; 
} 
if( ($ground_w<$w) || ($ground_h<$h) ) 
{ 
echo "                 ".$label."  ，      ！"; 
return; 
} 
switch($waterPos) 
{ 
case 0://   
$posX = rand(0,($ground_w - $w)); 
$posY = rand(0,($ground_h - $h)); 
break; 
case 1://1      
$posX = 0; 
$posY = 0; 
break; 
case 2://2      
$posX = ($ground_w - $w) / 2; 
$posY = 0; 
break; 
case 3://3      
$posX = $ground_w - $w; 
$posY = 0; 
break; 
case 4://4      
$posX = 0; 
$posY = ($ground_h - $h) / 2; 
break; 
case 5://5      
$posX = ($ground_w - $w) / 2; 
$posY = ($ground_h - $h) / 2; 
break; 
case 6://6      
$posX = $ground_w - $w; 
$posY = ($ground_h - $h) / 2; 
break; 
case 7://7      
$posX = 0; 
$posY = $ground_h - $h; 
break; 
case 8://8      
$posX = ($ground_w - $w) / 2; 
$posY = $ground_h - $h; 
break; 
case 9://9      
$posX = $ground_w - $w; 
$posY = $ground_h - $h; 
break; 
default://   
$posX = rand(0,($ground_w - $w)); 
$posY = rand(0,($ground_h - $h)); 
break; 
} 
//          
imagealphablending($ground_im, true); 
if($isWaterImage)//     
{ 
imagecopy($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h);//          
} 
else//     
{ 
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("           ！"); 
} 
imagestring ( $ground_im, $textFont, $posX, $posY, $waterText, imagecolorallocate($ground_im, $R, $G, $B)); 
} 
//         
@unlink($groundImage); 
switch($ground_info[2])//          
{ 
case 1:imagegif($ground_im,$groundImage);break; //  gif      
case 2:imagejpeg($ground_im,$groundImage);break; //  jpeg      
case 3:imagepng($ground_im,$groundImage);break; //  png      
default:die($errorMsg); 
} 
//     
if(isset($water_info)) unset($water_info); 
if(isset($water_im)) imagedestroy($water_im); 
unset($ground_info); 
imagedestroy($ground_im); 
} 
?> 
<?php 
for ($i=0;$i<count($_FILES['userfile']['tmp_name']);$i++) 
{ 
$upfile="./img/".($i+1).".png";//         
if(move_uploaded_file($_FILES['userfile']['tmp_name'][$i],$upfile)){ 
imageWaterMark($upfile,9,"./shuiyin.png","Made By Chenduan",5,"#FF0000"); 
/* 
*   ：     (         ) 
* imageWaterMark($groundImage,$waterPos=0,$waterImage="",$waterText="",$textFont=5,$textColor="#FF0000") 
*   ： 
* $groundImage     ，         ，    GIF,JPG,PNG  ； 
* $waterPos     ， 10   ，0     ； 
* 1     ，2     ，3     ； 
* 4     ，5     ，6     ； 
* 7     ，8     ，9     ； 
* $waterImage     ，        ，    GIF,JPG,PNG  ； 
* $waterText     ，         ，  ASCII ，     ； 
* $textFont     ，  1、2、3、4 5，   5； 
* $textColor     ，         ，   #FF0000(  )； 
*/ 
echo "<img src=\"".$upfile."\" border=\"0\">"; 
echo " ".($i+1)."       <br>"; 
} 
else{ 
echo " ".($i+1)."       <br>"; 
} 
} 
?>