找到根檔案
1、找到config.json，在配置檔案中新增水印效果
/* 上傳圖片配置項 */
"imageWater": "true",/*******************新增圖片水印設定 這裡是新增*/
"imageActionName": "uploadsimage", /* 執行上傳圖片的action名稱 */
"imageFieldName": "upfile", /* 提交的圖片表單名稱 */複製程式碼2、找到php目錄下的 action_uploads.php 檔案
（1）在上傳檔案的時候讀取配置檔案
/* 上傳配置 */
$base64 = "uploads";
switch (htmlspecialchars($_GET['action'])) {
case 'uploadsimage':
$config = array(
"pathFormat" => $CONFIG['imagePathFormat'],
"maxSize" => $CONFIG['imageMaxSize'],
"allowFiles" => $CONFIG['imageAllowFiles']
);
$watermark = $CONFIG['imageWater']; //************************新增讀取引數
$fieldName = $CONFIG['imageFieldName'];
break;
case 'uploadsscrawl':
（2）在例項化的時候傳入配置引數
$up = new uploadser($fieldName, $config, $base64,$watermark); // 最後的引數是新增
複製程式碼3、找到php同級目錄下的類 uploadser.class.php
（1）例項化類的時候新增私有屬性
class uploadser
{
private $water; //是否新增水印(屬性) *******************新增
（2）在建構函式中新增傳遞的引數，新增最後一個引數
public function __construct($fileField, $config, $type = "uploads",$watermark = false)
{
$this->water = $watermark;
$this->fileField = $fileField;
（3）在檔案上傳完成之後 upFile方法 的最後新增
//移動檔案
if (!(move_uploadsed_file($file["tmp_name"], $this->filePath) && file_exists($this->filePath))) { //移動失敗
$this->stateInfo = $this->getStateInfo("ERROR_FILE_MOVE");
} else { //移動成功
$this->stateInfo = $this->stateMap[0];
}
//********************新增
if( $this->water ){
$this->watermark($this->filePath,$this->filePath);
}
（4）新增水印函式和檢測檔案是否存在函式
/*
* 圖片加水印
* $source string 圖片資源
* $target string 新增水印後的名字
* $w_pos int 水印位置 具體看程式碼
* $w_img string 水印圖片路徑
* $w_text string 顯示的文字
* $w_font int 字型大小
* $w_color string 字型顏色
*/
private function watermark($source, $target = '', $w_pos = '', $w_img = '', $w_text = 'loveteemo.com',$w_font = 10, $w_color = '#CC0000') {
$this->w_img = 'logo.png';//水印圖片的路徑
$this->w_pos = 9;
$this->w_minwidth = 400;//最少寬度
$this->w_minheight = 200;//最少高度
$this->w_quality = 80;//影象質量
$this->w_pct = 85;//透明度
$w_pos = $w_pos ? $w_pos : $this->w_pos;
$w_img = $w_img ? $w_img : $this->w_img;
if(!$this->check($source)) return false;
if(!$target) $target = $source;
$source_info = getimagesize($source);//圖片資訊
$source_w = $source_info[0];//圖片寬度
$source_h = $source_info[1];//圖片高度
if($source_w < $this->w_minwidth || $source_h < $this->w_minheight) return false;
switch($source_info[2]) { //圖片型別
case 1 : //GIF格式
$source_img = imagecreatefromgif($source);
break;
case 2 : //JPG格式
$source_img = imagecreatefromjpeg($source);
break;
case 3 : //PNG格式
$source_img = imagecreatefrompng($source);
//imagealphablending($source_img,false); //關閉混色模式
imagesavealpha($source_img,true); //設定標記以在儲存 PNG 影象時儲存完整的 alpha 通道資訊（與單一透明色相反）
break;
default :
return false;
}
if(!empty($w_img) && file_exists($w_img)) { //水印圖片有效
$ifwaterimage = 1; //標記
$water_info = getimagesize($w_img);
$width = $water_info[0];
$height = $water_info[1];
switch($water_info[2]) {
case 1 :
$water_img = imagecreatefromgif($w_img);
break;
case 2 :
$water_img = imagecreatefromjpeg($w_img);
break;
case 3 :
$water_img = imagecreatefrompng($w_img);
imagealphablending($w_img,false);
imagesavealpha($w_img,true);
break;
default :
return;
}
}else{
$ifwaterimage = 0;
$temp = imagettfbbox(ceil($w_font*2.5), 0, '../../texb.ttf', $w_text); //imagettfbbox返回一個含有 8 個單元的陣列表示了文字外框的四個角
$width = $temp[2] - $temp[6];
$height = $temp[3] - $temp[7];
unset($temp);
}
switch($w_pos) {
case 1:
$wx = 5;
$wy = 5;
break;
case 2:
$wx = ($source_w - $width) / 2;
$wy = 0;
break;
case 3:
$wx = $source_w - $width;
$wy = 0;
break;
case 4:
$wx = 0;
$wy = ($source_h - $height) / 2;
break;
case 5:
$wx = ($source_w - $width) / 2;
$wy = ($source_h - $height) / 2;
break;
case 6:
$wx = $source_w - $width;
$wy = ($source_h - $height) / 2;
break;
case 7:
$wx = 0;
$wy = $source_h - $height;
break;
case 8:
$wx = ($source_w - $width) / 2;
$wy = $source_h - $height;
break;
case 9:
$wx = $source_w - ($width+5);
$wy = $source_h - ($height+5);
break;
case 10:
$wx = rand(0,($source_w - $width));
$wy = rand(0,($source_h - $height));
break;
default:
$wx = rand(0,($source_w - $width));
$wy = rand(0,($source_h - $height));
break;
}
if($ifwaterimage) {
if($water_info[2] == 3) {
imagecopy($source_img, $water_img, $wx, $wy, 0, 0, $width, $height);
}else{
imagecopymerge($source_img, $water_img, $wx, $wy, 0, 0, $width, $height, $this->w_pct);
}
}else{
if(!empty($w_color) && (strlen($w_color)==7)) {
$r = hexdec(substr($w_color,1,2));
$g = hexdec(substr($w_color,3,2));
$b = hexdec(substr($w_color,5));
}else{
return;
}
imagestring($source_img,$w_font,$wx,$wy,$w_text,imagecolorallocate($source_img,$r,$g,$b));
}
switch($source_info[2]) {
case 1 :
imagegif($source_img, $target);
//GIF 格式將影象輸出到瀏覽器或檔案(欲輸出的影象資源, 指定輸出影象的檔名)
break;
case 2 :
imagejpeg($source_img, $target, $this->w_quality);
break;
case 3 :
imagepng($source_img, $target);
break;
default :
return;
}
if(isset($water_info)){
unset($water_info);
}
if(isset($water_img)) {
imagedestroy($water_img);
}
unset($source_info);
imagedestroy($source_img);
return true;
}
/**
* 檢測檔案是否存在
* @param $image
* @return bool
*/
public function check($image){
return extension_loaded('gd') && preg_match("/\.(jpg|jpeg|gif|png)/i", $image, $m) && file_exists($image) && function_exists('imagecreatefrom'.($m[1] == 'jpg' ? 'jpeg' : $m[1]));
}
複製程式碼