<?php
function imageWaterMark($groundImage,$waterPos=0,$waterImage="",$waterText="",$textFont=5,$textColor="#FF0000")
{
$isWaterImage = FALSE;
$formatMsg = " The file format is not supported, please use the image processing software to convert the image to GIF , JPG , PNG Format. ";
// Read watermark file
if(!empty($waterImage) && file_exists($waterImage))
{
$isWaterImage = TRUE;
$water_info = getimagesize($waterImage); // Get is 1 An array
$water_w = $water_info[0];// Gets the width of the watermark image
$water_h = $water_info[1];// Get the watermark image high
switch($water_info[2])// Get the watermark image format
{
case 1:$water_im = imagecreatefromgif($waterImage);break; // Convert the image to PHP An identifiable coding process
case 2:$water_im = imagecreatefromjpeg($waterImage);break; // Convert the image to PHP An identifiable coding process
case 3:$water_im = imagecreatefrompng($waterImage);break; // Convert the image to PHP An identifiable coding process
default:die($formatMsg);
}
}
// Read background picture
if(!empty($groundImage) && file_exists($groundImage))
{
$ground_info = getimagesize($groundImage);
$ground_w = $ground_info[0];// Gets the width of the background image
$ground_h = $ground_info[1];// Get the height of the background image
switch($ground_info[2])// Gets the format of the background image
{
case 1:$ground_im = imagecreatefromgif($groundImage);break;
case 2:$ground_im = imagecreatefromjpeg($groundImage);break;
case 3:$ground_im = imagecreatefrompng($groundImage);break;
default:die($formatMsg);
}
}
else
{
die(" Need to add watermark image does not exist! ");
}
// The watermark position
if($isWaterImage)// Image watermarking
{
$w = $water_w;
$h = $water_h;
$label = " The image ";
}
else// Text watermarking
{
$temp = imagettfbbox(ceil($textFont*2.5),0,"c:/windows/fonts/stcaiyun.ttf",$waterText);// Obtained using  TrueType  The range of text in a font
$w = $temp[2] - $temp[6];
$h = $temp[3] - $temp[7];
unset($temp);
$label = " Text area ";
}
if( ($ground_w<$w) || ($ground_h<$h) )
{
echo " The length or width of the image to be watermarked ".$label." Too small to generate a watermark! ";
return;
}
switch($waterPos)
{
case 0:// random
$posX = rand(0,($ground_w - $w));
$posY = rand(0,($ground_h - $h));
break;
case 1://1 The top is on the left
$posX = 0;
$posY = 0;
break;
case 2://2 Is the top centered
$posX = ($ground_w - $w) / 2;
$posY = 0;
break;
case 3://3 The top is on the right
$posX = $ground_w - $w;
$posY = 0;
break;
case 4://4 The center is on the left
$posX = 0;
$posY = ($ground_h - $h) / 2;
break;
case 5://5 It is centered in the middle
$posX = ($ground_w - $w) / 2;
$posY = ($ground_h - $h) / 2;
break;
case 6://6 Center to the right
$posX = $ground_w - $w;
$posY = ($ground_h - $h) / 2;
break;
case 7://7 Is the bottom in the left
$posX = 0;
$posY = $ground_h - $h;
break;
case 8://8 Is the bottom center
$posX = ($ground_w - $w) / 2;
$posY = $ground_h - $h;
break;
case 9://9 Is the bottom in the right
$posX = $ground_w - $w;
$posY = $ground_h - $h;
break;
default:// random
$posX = rand(0,($ground_w - $w));
$posY = rand(0,($ground_h - $h));
break;
}
// Set the color mixing mode of the image
imagealphablending($ground_im, true);
if($isWaterImage)// Image watermarking
{
imagecopy($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h);// Copy the watermark to the target file
}
else// Text watermarking
{
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(" Watermark text color format is incorrect! ");
}
imagestring ( $ground_im, $textFont, $posX, $posY, $waterText, imagecolorallocate($ground_im, $R, $G, $B));
}
// Generate the watermarked image
@unlink($groundImage);
switch($ground_info[2])// Gets the format of the background image
{
case 1:imagegif($ground_im,$groundImage);break; // create gif Format picture
case 2:imagejpeg($ground_im,$groundImage);break; // create jpeg Format picture
case 3:imagepng($ground_im,$groundImage);break; // create png Format picture
default:die($errorMsg);
}
// Free memory
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";// Change the path here to yours
if(move_uploaded_file($_FILES['userfile']['tmp_name'][$i],$upfile)){
imageWaterMark($upfile,9,"./shuiyin.png","Made By Chenduan",5,"#FF0000");
/*
*  Function: image watermarking  ( Watermarking supports images or text )
* imageWaterMark($groundImage,$waterPos=0,$waterImage="",$waterText="",$textFont=5,$textColor="#FF0000")
*  Parameters:
* $groundImage  Background image, that is, the need to add watermark image, only support GIF,JPG,PNG Format;
* $waterPos  Watermark location, yes 10 Kind of state, 0 Is a random position;
* 1 Is the top on the left, 2 Is the top centered, 3 Is the top in the right;
* 4 To the left of the middle, 5 Is centered in the middle, 6 To the right of the middle;
* 7 Is the bottom on the left, 8 Is the bottom center, 9 Is the bottom to the right;
* $waterImage  Image watermarking, that is, as a watermark of the image, only support GIF,JPG,PNG Format;
* $waterText  Text watermark, that is, text as a watermark, support ASCII Code, do not support Chinese;
* $textFont  Text size, the value is 1 , 2 , 3 , 4 or 5 By default, 5 ;
* $textColor  Text color, the value is 106 Base color value, default is #FF0000( red ) ;
*/
echo "<img src=\"".$upfile."\" border=\"0\">";
echo " The first ".($i+1)." The operation of the picture was successful <br>";
}
else{
echo " The first ".($i+1)." I can't upload a picture <br>";
}
}
?>