php 之 图片水印 (支持批量图片处理)(支持添加图片水印,文字水印)

<?php
require_once 'ImageWaterMake.class.php';
require_once 'waterImg.conf.php';

$iwm = new ImageWaterMake();	//创建水印对象

if(!empty($waterImg)){
foreach ($waterImg as $arrI){
waterImg($iwm,$bgPath,$arrI,'');
}
}

if (!empty($waterText)) {
foreach ($waterText as $arrT){
waterImg($iwm,$bgPath,'',$arrT);
}
}

echo "程序结束!";
//--------------------------------------------------------------------------------------------
//打水印
function waterImg($iwm,$bgPath,$waterImg,$waterText){
if (is_dir($bgPath)) {
if(($dir_handle = @opendir($bgPath))!=null){
while(($filename = readdir($dir_handle))!=null){

if ($filename != '.' && $filename != '..') {
$subFile=$bgPath.'/'.$filename;//获取文件名字
if (is_file($subFile)) {//为文件  打水印
$info = pathinfo($subFile);
if($info['extension'] =='jpg' || $info['extension'] =='png' || $info['extension'] =='gif'){

$iwm->setGroundImage($subFile);//设置背景图
///////////////////////////////////////设置水印属性
if(!empty($waterImg)){
$iwm->setWaterImg($waterImg[0]);//设置水印图片
$iwm->setWaterPerPos($waterImg[1]);//设置水印位置
$iwm->setWaterSize($waterImg[2]);//设置水印图片大小
}
if (!empty($waterText)) {
$iwm->setWaterText($waterText[0]);//设置文字水印中的文字
$iwm->setTextPerPos($waterText[1]);//设置文字水印位置
$iwm->setTextSize($waterText[2]);//设置文字水印大小
$iwm->setTextColor($waterText[3]);//设置文字颜色
}
///////////////////////////////////////设置水印属性
$iwm->run();//打水印
}else {
continue;
}
}
if (is_dir($subFile)) {//为目录
waterImg($iwm,$subFile,$waterImg,$waterText);
}
}
}
}else{
echo "背景文件夹打开错误!";
}

}else{
echo "背景图片目录无法获取!";
}
}
?>

<?php
/**
* 图片水印类
* @author skyling
* 2014/7/28
*/
class ImageWaterMake {
private $groundImage; //背景图
private $waterImg;	  //水印图
private $waterPos;	  //水印位置
private $waterText;	  //水印文字
private $textSize;	  //文字大小
private $textColor;	  //文字颜色
private $textPos;	  //文字水印位置
private $waterSize;		//图片水印缩放比例

private $waterPerPos;
private $textPerPos;
private $bgIm;
private $waterIm;
private $saveFile;

private $isWaterImage=TRUE;	//是否可以打水印
private $bgInfo;//[0] width [1]height [2] .jpg
private $waterInfo;//[0] width [1]height [2] .jpg

public function run(){

$this->readBgImg();		//读取背景文件
$this->readWaterImg();	//读取水印文件
$this->getTextPos();
$this->getWaterPos();
$this->chImgSize();	//改变水印大小

$this->imageWaterMarker();
$this->saveImg();
}

/**
* 改变水印大小
*/
private function chImgSize(){
if ($this->saveFile == $this->waterImg || $this->waterSize==1) {
return ;
}
$this->saveFile = dirname($this->waterImg).'\ch'.$this->waterSize.basename($this->waterImg);
if(!file_exists($this->saveFile)){
$im  =  imagecreatetruecolor( $this->waterInfo[0]*$this->waterSize, $this->waterInfo[1]*$this->waterSize);
imagealphablending($im, true);
imagesavealpha($im, true);
$white = imagecolorallocatealpha($im,255,255,255,127);
imagefill($im,0,0,$white);

imagecopyresized($im, $this->waterIm, 0, 0, 0, 0, $this->waterInfo[0]*$this->waterSize, $this->waterInfo[0]*$this->waterSize, $this->waterInfo[0], $this->waterInfo[1]);
switch($this->bgInfo[2])//取得背景图片的格式
{
case 1:imagegif($im,$this->saveFile);break;
case 2:imagejpeg($im,$this->saveFile);break;
case 3:imagepng($im,$this->saveFile);break;
default:die($this->waterIm."改变大小发生错误！");
}
}
$this->setWaterImg($this->saveFile);
$this->readWaterImg();
}
/**
* 读取背景
*/
private function readBgImg(){
if (!empty($this->groundImage) && file_exists($this->groundImage)) {
$this->bgInfo = getimagesize($this->groundImage);

switch($this->bgInfo[2])//取得水印图片的格式
{
case 1:$this->bgIm = imagecreatefromgif($this->groundImage);break;
case 2:$this->bgIm = imagecreatefromjpeg($this->groundImage);break;
case 3:$this->bgIm = imagecreatefrompng($this->groundImage);break;
default:die("背景图片暂时只支持gif,jpg,png!");$this->isWaterImage = FALSE;break;
}
return;
}
$this->isWaterImage = FALSE;
}

/**
* 读取水印
*/
private function readWaterImg(){
if (!empty($this->waterImg) && file_exists($this->waterImg)) {
$this->waterInfo = getimagesize($this->waterImg);
switch($this->waterInfo[2])//取得水印图片的格式
{
case 1:$this->waterIm = imagecreatefromgif($this->waterImg);break;
case 2:$this->waterIm = imagecreatefromjpeg($this->waterImg);break;
case 3:$this->waterIm = imagecreatefrompng($this->waterImg);break;
default:die("水印图片暂时只支持gif,jpg,png!");$this->isWaterImage = FALSE;echo "水印图片路径不正确!";
}
return;
}

$this->isWaterImage = FALSE;
echo "水印图片路径不正确!";
}

public function saveImg(){
//生成水印后的图片
$saveFile = $this->groundImage;
switch($this->bgInfo[2])//取得背景图片的格式
{
case 1:imagegif($this->bgIm,$saveFile);break;
case 2:imagejpeg($this->bgIm,$saveFile);break;
case 3:imagepng($this->bgIm,$saveFile);break;
default:die($this->groundImage."生成图片错误！");break;
}
echo $this->groundImage. "   +   ".$this->waterImg."水印生成成功!<br>";
}

function __destruct(){

}
/**
* 创建水印
*/
public function imageWaterMarker(){
imagealphablending($this->bgIm, true);

if ($this->isWaterImage) {//图片水印
imagecopy($this->bgIm, $this->waterIm, $this->waterPos['x'], $this->waterPos['y'], 0, 0, $this->waterInfo[0], $this->waterInfo[1]);
}
if ($this->waterText) {//文字水印
if( !empty($this->textColor) && (strlen($this->textColor)==7) )
{
$R = hexdec(substr($this->textColor,1,2));
$G = hexdec(substr($this->textColor,3,2));
$B = hexdec(substr($this->textColor,5));
}
else
{
die("水印文字颜色格式不正确！");
}
imagestring ( $this->bgIm, $this->textSize, $this->textPos['x'], $this->textPos['y'], $this->waterText, imagecolorallocate($this->bgIm, $R, $G, $B));
}
}

/**
* @param !CodeTemplates.settercomment.paramtagcontent!
*/
public function getWaterPos() {
if ($this->waterPerPos) {
$this->waterPos['x']=ceil($this->bgInfo[0]*$this->waterPerPos[0]);
$this->waterPos['y']=ceil($this->bgInfo[1]*$this->waterPerPos[1]);
}else {
$this->waterPos['x']=ceil($this->bgInfo[0]*0.3);
$this->waterPos['y']=ceil($this->bgInfo[1]*0.4);
}
}
/**
* @param !CodeTemplates.settercomment.paramtagcontent!
*/
public function getTextPos() {

if ($this->textPerPos) {
$this->textPos['x']=ceil($this->bgInfo[0]*$this->textPerPos[0]);
$this->textPos['y']=ceil($this->bgInfo[1]*$this->textPerPos[1]);
}else {
$this->textPos['x']=ceil($this->bgInfo[0]*0.1);
$this->textPos['y']=ceil($this->bgInfo[1]*0.9);
}
}
/**
* 设置水印大小
* @param number $per
*/
public function setWaterSize($waterSize=1){
$this->waterSize=$waterSize;
}

/**
* @param !CodeTemplates.settercomment.paramtagcontent!
*/
public function setGroundImage($groundImage) {
$this->groundImage = $groundImage;
}

/**
* @param !CodeTemplates.settercomment.paramtagcontent!
*/
public function setWaterImg($waterImg) {
$this->waterImg = $waterImg;
}

/**
* @param !CodeTemplates.settercomment.paramtagcontent!
*/
public function setWaterText($waterText) {
$this->waterText = $waterText;
}

/**
* @param !CodeTemplates.settercomment.paramtagcontent!
*/
public function setTextSize($textSize) {
$this->textSize = $textSize;
}

/**
* @param !CodeTemplates.settercomment.paramtagcontent!
*/
public function setTextColor($textColor) {
$this->textColor = $textColor;
}

/**
* @param !CodeTemplates.settercomment.paramtagcontent!
*/
public function setWaterPerPos($waterPerPos) {
$this->waterPerPos = $waterPerPos;
}

/**
* @param !CodeTemplates.settercomment.paramtagcontent!
*/
public function setTextPerPos($textPerPos) {
$this->textPerPos = $textPerPos;
}

}

?>

<?
#生成水印前请备份文件
#背景路径  绝对路径
$bgPath='C:/Users/skyling/Desktop/ypyt';
#水印图片
#可设置多张
/*格式如下
waterImg
[0]  可为相对或绝对路径                                  string
waterImg
[1]  位置  上左百分比位置      0-1 array(1,1)
waterImg
[2]  缩放大小                                 0-1 若无需改变大小请默认为1  因为浏览器支持不同情慎用保持值为1
* */
$waterImg = array(
array(
"logo.png",
array(0.02,0.02),
1
),
array(
"text.png",
array(0.3,0.4),
1
)
);
#文字水印
#可设置多个
/*参数格式:
$waterText
[0]  文字
$waterText
[1]  位置  上左百分比位置      0-1 array(1,1)
$waterText
[2]  大小   1-5
$waterText
[3]  颜色  #000000
*/
$waterText = array(
array(
'hello',
array(0.1,0.9),
2,
'#ffffff'
)
);
?>