<?php
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class Upload {
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var $imgname='';
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var $previewname=''; // 添加这两个变量用于记录，图片全名，以及缩略图全名
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var $upfiledir='/upload';
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var $maxsize='10240'; //图片最大小KB
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var $addpreview=true; //是否生成缩略图
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var $addwatermark=false; //$addwatermark=1加水印，其它不加水印
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var $watertype='img'; //水印类型(txt为文字,img为图片)
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var $waterimg='/images/logo.png'; //水印图片
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var $waterstring='www.phpyun.com'; //水印字符
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var $ttf=''; //默认字体
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var $alpha='50'; //透明度
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var $position=1; //水印位置 1左上,2:上中3:右上4:中左5居中6中右7左下8底中9底右
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var $destination_folder; //缩略图保存路径，带日期文件夹
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var $errorType;
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var $pic_type; //图片类型
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function Upload($paras=array()){
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if(count($paras)==false){$paras=array('maxsize'=>'10kb','addwatermark'=>true,'watertype'=>'txt/img','waterimg'=>'images/logo.png','waterstring'=>'','ttf'=>'','position'=>'1/2/3/4');}
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foreach($paras as $key => $value){
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$key=strtolower($key);
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$this->$key=$value;
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}
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$this->upfiledir=rtrim($this->upfiledir,'/');
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$this->maxsize=intval($this->maxsize);
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//错误类型：无错误为0
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$this->errorType=0;
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}
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/*
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上传图片
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$file
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*/
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function picture($file,$pictype=''){
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$fileName=$file["name"];
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$filetmpname=$file["tmp_name"];
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$uptypes=$this->pic_type;
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$nameArr=@explode(".",$fileName);
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$num=count($nameArr)-1;
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$this->destination_folder=$this->upfiledir.'/'.date('Ymd').'/'; //上传文件路径
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if(!file_exists($this->upfiledir)){
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@mkdir($this->upfiledir,0777,true);
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}
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if(!file_exists($this->destination_folder)){
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@mkdir($this->destination_folder,0777,true);
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}
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$imgpreviewsize=1/2; //缩略图比例
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if(@filesize($filetmpname) > ($this->maxsize*1024)){//检查文件大小
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return $this->errorType=1;//文件太大
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}
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//in_array($file["type"], $uptypes
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if(!in_array(strtolower($nameArr[$num]),$uptypes)){//检查文件类型
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return $this->errorType=2;//文件类型不符
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}
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if(stripos($nameArr['0'],"<?php")!==false){//检查文件名称是否含有非法字符
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return $this->errorType=6;//非法字符
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}
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//$image_size = getimagesize($filetmpname);
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list($width,$height,$ptype,$attr) =getimagesize($filetmpname);
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switch ($ptype)
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{
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case 1: //gif
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$img = imagecreatefromgif($filetmpname);
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break;
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case 2: //jpg
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$img = imagecreatefromjpeg($filetmpname);
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break;
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case 3: //png
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$img = imagecreatefrompng($filetmpname);
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break;
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case 6: //bmp
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$img = imagecreatefrombmp($filetmpname);
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break;
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default:
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return 0;
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break;
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}
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if (!$img){
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return $this->errorType=6;//非法字符
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}
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$pinfo = pathinfo($fileName);
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$ftype = $pinfo['extension'];
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$fname = $this->generateImgName($ftype);
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$destination = $this->destination_folder.$fname;
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if (file_exists($destination)){
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return $this->errorType=3;//同名文件已经存在了
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}
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// 分辨率限制条件
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$fbl = 1920;
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if ($pictype == 'logo' && ($height > 300 || $width > 300)){
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// 用户头像，图片太大，需要进行压缩
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$this->imgname = $this->makeThumb($file["tmp_name"], 300, 300, '', false, $fname);
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return $this->imgname;
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}elseif ($height > $fbl || $width > $fbl){
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// 图片尺寸过大，直接缩略，创建图片
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$this->imgname = $this->makeThumb($file["tmp_name"], $fbl, $fbl, '', false, $fname);
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return $this->imgname;
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}elseif(!move_uploaded_file($filetmpname,$destination)){
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return $this->errorType=4;//移动文件出错
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}
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$this->imgname=$destination;
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//if($this->addpreview){
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if($ptype != 1 || $this->addpreview){
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if($this->config['is_picthumb']==1){
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$this->imgname = $this->makeThumb($this->imgname,$width,$height,'',true);
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}
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}
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//}
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if($this->addwatermark){
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$this->makewatermark($this->imgname);
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}
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return ($this->imgname);
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}
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/**
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* base64图片上传
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*/
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function imageBase($data){
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preg_match('/^(data:\s*image\/(\w+);base64,)/', $data, $result);
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$uimage=str_replace($result[1], '', str_replace('#','+',$data));
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if(in_array(strtolower($result[2]),array('jpg','png','gif','jpeg'))){
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$new_file = time().rand(1000,9999).".".$result[2];
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}else{
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$new_file = time().rand(1000,9999).".jpg";
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}
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$im = imagecreatefromstring(base64_decode($uimage));
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if ($im !== false) {
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$this->destination_folder=$this->upfiledir.'/'.date('Ymd').'/'; //上传文件路径
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if(!file_exists($this->upfiledir)){
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@mkdir($this->upfiledir,0777,true);
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}
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if(!file_exists($this->destination_folder)){
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@mkdir($this->destination_folder,0777,true);
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}
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$destination =$this->destination_folder.$new_file;
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$re=file_put_contents($destination, base64_decode($uimage));
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chmod($destination,0777);
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$this->imgname=$destination;
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if($re){
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if(!$this->addpreview && $this->is_picself=='1'){
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//读取图片信息 判断非法字符
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$image_data = fread(fopen($this->imgname, 'r'), filesize($this->imgname));
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if(strpos($image_data,'<?php')!==false){
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$this->addpreview = true;
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}
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}
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if($this->addpreview){
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list($width,$height,$type,$attr) = getimagesize($this->imgname);
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$this->imgname = $this->makeThumb($this->imgname,$width,$height,'',$this->addpreview);
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}
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}else{
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return $this->errorType=4;//写入文件出错
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}
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}else{
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return $this->errorType=6;//不合法的图片内容
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}
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if($this->addwatermark){
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$this->makewatermark($this->imgname);
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}
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return $this->imgname;
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}
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//选择生成水印类型(文字或者图片)
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function makewatermark($destination){
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switch($this->watertype){
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case 'txt': //加水印字符串
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// imagestring($nimage,2,3,$image_size[1]-15,$waterstring,$black);// 画出水平的字符串
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return $this->waterMarktxt($destination);
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break;
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case 'img': //加水印图片
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return $this->waterMarkimg($destination);
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break;
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}
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}
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//==========================================
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// 函数: waterMarkimg($destination,$image_size,$destination_folder)
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// 功能: 给图片加水印
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// 参数: $destination 图片文件名
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// 参数: $image_size 大小数组(包含二个字符串)
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//destination_folder文件存放路径
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// 返回: 1 成功 成功时返回生成的图片路径
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//==========================================
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function waterMarkimg($destination)
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{
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$image_size = getimagesize($destination);
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$iinfo=getimagesize($destination,$iinfo);//取得GIF、JPEG、PNG或SWF图形的大小
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$iinfo2=getimagesize($this->waterimg,$iinfo2);//取得GIF、JPEG、PNG或SWF水印图形的大小
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$nimage=imagecreatetruecolor($image_size[0],$image_size[1]);//建立一个新的图形
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$white=imagecolorallocate($nimage,255,255,255);//分配图形的颜色
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$black=imagecolorallocate($nimage,0,0,0);//分配图形的颜色
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$red=imagecolorallocate($nimage,255,0,0);//分配图形的颜色
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imagefill($nimage,0,0,$white);//将图形着色
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switch ($iinfo[2])
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{
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case 1:
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$simage =imagecreatefromgif($destination);//从文件或URL建立一个新的图形
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break;
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case 2:
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$simage =imagecreatefromjpeg($destination);
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break;
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case 3:
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$simage =imagecreatefrompng($destination);
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break;
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case 6:
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$simage =imagecreatefromwbmp($destination);
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break;
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default:$this->errorType=5;//不支持的文件类型
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return;
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}
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imagecopy($nimage,$simage,0,0,0,0,$image_size[0],$image_size[1]);
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// imagefilledrectangle($nimage,1,$image_size[1]-15,80,$image_size[1],$white);//建立一个矩形并且填满颜色
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switch ($iinfo2[2]){
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case 1:
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$simage1 =imagecreatefromgif($this->waterimg);
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break;
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case 2:
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$simage1 =imagecreatefromjpeg($this->waterimg);
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break;
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case 3:
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$simage1 =imagecreatefrompng($this->waterimg);
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break;
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case 6:
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$simage1 =imagecreatefromwbmp($this->waterimg);
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break;
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default:
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$this->errorType=6;//不支持的水印文件类型
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return;
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}
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$gifsize=getimagesize($this->waterimg);//取得GIF、JPEG、PNG或SWF图形的大小
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switch($this->position){//水印位置
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case 1:// 上左
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imagecopy($nimage,$simage1,0,0,0,0,$gifsize[0],$gifsize[1]); // 左下
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break;
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case 2:// 上中
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imagecopy($nimage,$simage1,($image_size[0]-$gifsize[0])/2,0,0,0,$gifsize[0],$gifsize[1]); // 左下
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break;
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case 3:// 右上
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imagecopy($nimage,$simage1,$image_size[0]-$gifsize[0],0,0,0,$gifsize[0],$gifsize[1]);
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break;
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case 4:// 中左
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imagecopy($nimage,$simage1,0,($image_size[1]-$gifsize[1])/2,0,0,$gifsize[0],$gifsize[1]); // 左下
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break;
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case 5:// 居中
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imagecopy($nimage,$simage1,($image_size[0]-$gifsize[0])/2, ($image_size[1]-$gifsize[1])/2,0,0,$gifsize[0],$gifsize[1]);
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break;
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case 6:// 中右
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imagecopy($nimage,$simage1,$image_size[0]-$gifsize[0],($image_size[1]-$gifsize[1])/2,0,0,$gifsize[0],$gifsize[1]); // 左下
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break;
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case 9:// 右下
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imagecopy($nimage,$simage1,$image_size[0]-$gifsize[0], $image_size[1]-$gifsize[1],0,0,$gifsize[0],$gifsize[1]);
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break;
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case 7:// 左下
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imagecopy($nimage,$simage1,0,$image_size[1]-$gifsize[1],0,0,$gifsize[0],$gifsize[1]); // 左下
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break;
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case 8:// 底中
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imagecopy($nimage,$simage1,($image_size[0]-$gifsize[0])/2,$image_size[1]-$gifsize[1],0,0,$gifsize[0],$gifsize[1]); // 左下
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break;
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}
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imagedestroy($simage1);// 结束图形
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switch ($iinfo[2]){
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case 1:
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imagejpeg($nimage, $destination);
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break;
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case 2:
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imagejpeg($nimage, $destination);
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break;
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case 3:
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imagepng($nimage, $destination);
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break;
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case 6:
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imagewbmp($nimage, $destination);
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break;
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}
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//覆盖原上传文件
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imagedestroy($nimage);// 结束图形
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imagedestroy($simage);// 结束图形
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return $destination;
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}
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//==========================================
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// 函数: addwatermark($sourFile, $text)
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// 功能: 给图片加水印
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// 参数: $sourFile 图片文件名
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// 参数: $text 文本数组(包含二个字符串)
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//displayPath文件存放路径
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// 返回: 1 成功 成功时返回生成的图片路径
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//==========================================
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function waterMarktxt($sourFile){
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$maxWidth = 300; //图片最大宽度
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$maxHeight = 300; //图片最大高度
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$toFile = true; //是否生成文件
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$imageInfo = $this->getInfo($sourFile);
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switch ($imageInfo["type"])
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{
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case 1: //gif
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$newName = substr($imageInfo["name"], 0, strrpos($imageInfo["name"], ".")) . ".gif";
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break;
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case 2: //jpg
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$newName = substr($imageInfo["name"], 0, strrpos($imageInfo["name"], ".")) . ".jpg";
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break;
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case 3: //png
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$newName = substr($imageInfo["name"], 0, strrpos($imageInfo["name"], ".")) . ".png";
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break;
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default:
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return 0;
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break;
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}
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switch ($imageInfo["type"])
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{
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case 1: //gif
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$img = imagecreatefromgif($sourFile);
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break;
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case 2: //jpg
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$img = imagecreatefromjpeg($sourFile);
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break;
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case 3: //png
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$img = imagecreatefrompng($sourFile);
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break;
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default:
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return 0;
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break;
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}
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if (!$img) {
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return 0;
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}
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$width = ($maxWidth > $imageInfo["width"]) ? $imageInfo["width"] : $maxWidth;
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$height = ($maxHeight > $imageInfo["height"]) ? $imageInfo["height"] : $maxHeight;
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$srcW = $imageInfo["width"];
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$srcH = $imageInfo["height"];
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if ($srcW * $width > $srcH * $height)
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$height = round($srcH * $width / $srcW);
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else
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$width = round($srcW * $height / $srcH);
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//*
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if (function_exists("imagecreatetruecolor")) //GD2.0.1
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{
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$new = imagecreatetruecolor($width, $height);
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if($imageInfo["type"]==1 || $imageInfo["type"]==3){
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$color = imagecolorallocate($new,255,255,255);
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imagecolortransparent($new,$color);
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imagefill($new,0,0,$color);
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}
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imagecopyresampled($new, $img, 0, 0, 0, 0, $width, $height, $imageInfo["width"], $imageInfo["height"]);
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}
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else
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{
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$new = imagecreate($width, $height);
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if($imageInfo["type"]==1 || $imageInfo["type"]==3){
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$color = imagecolorallocate($new,255,255,255);
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imagecolortransparent($new,$color);
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imagefill($new,0,0,$color);
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}
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imagecopyresized($new, $img, 0, 0, 0, 0, $width, $height, $imageInfo["width"], $imageInfo["height"]);
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}
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$black = imagecolorallocate($new, 0, 0, 0);
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//$alpha = imagecolorallocatealpha($new, 230, 230, 230, 40);
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$alpha = imagecolorallocatealpha($new, 230, 230, 230,$this->alpha);
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//$rectW = max(strlen($text[0]),strlen($text[1]))*7;
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imagefilledrectangle($new, 0, $height-26, $width, $height, $alpha);
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$white = imagecolorallocate ($new, 0, 0, 0);
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imagettftext ($new, 10, 0, 20, $height-8,$white, $this->ttf, $this->waterstring);
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//*/
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if ($toFile)
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{
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if (file_exists($this->destination_folder.$newName))
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@unlink($this->destination_folder.$newName);
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imagejpeg($new, $this->destination_folder.$newName);
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imagedestroy($new);
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imagedestroy($img);
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return $this->destination_folder.$newName;
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}
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else
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{
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imagejpeg($new);
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imagedestroy($new);
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imagedestroy($img);
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}
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}
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//==========================================
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// 函数: getInfo($file)
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// 功能: 返回图像信息
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// 参数: $file 文件名称
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// 返回: 图片信息数组
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//==========================================
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function getInfo($file)
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{
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//$file=$file;
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$data=getimagesize($file);
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$imageInfo["width"] = $data[0];
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$imageInfo["height"]= $data[1];
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$imageInfo["type"] = $data[2];
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$imageInfo["name"] = basename($file);
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$imageInfo["size"] = filesize($file);
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return $imageInfo;
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}
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//==========================================
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// 函数: makeThumb($sourFile,$width=80,$height=60)
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// 功能: 生成缩略图(输出到浏览器)
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// 参数: $sourFile 图片源文件
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// 参数: $width 生成缩略图的宽度
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// 参数: $height 生成缩略图的高度
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// 返回: 0 失败 成功时返回生成的图片路径
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//==========================================
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function makeThumb($sourFile,$width=100,$height=100,$newNamePre='',$addpreview=false, $zsNewName = '')
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{
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$imageInfo = $this->getInfo($sourFile);
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//原图片尺寸
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$srcW = $imageInfo["width"];
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$srcH = $imageInfo["height"];
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$isBig = false;
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//等比缩放
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if(floor($srcW/$srcH) >= 1){
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$width = ($width > $imageInfo["width"]) ? $imageInfo["width"] : $width;
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$height=round($srcH*$width/$srcW);
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//根据比例，加上宽度限制
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if ($height>1080){
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$height = 1080;
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$width=round($srcW*$height/$srcH);
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$isBig = true;
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}
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}else{
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$height = ($height > $imageInfo["height"]) ? $imageInfo["height"] : $height;
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if ($height>1080){
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$height = 1080;
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$isBig = true;
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}
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$width=round($srcW*$height/$srcH);
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}
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if ($isBig){
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// 图片尺寸比较大的需要动态设置内存大小
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ini_set("memory_limit", "512M");
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}
|
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if (!empty($zsNewName)){
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// 图片尺寸过大，直接缩略，创建图片所用文件名，与上传时一致，不需要弄新的文件名
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$newName = $zsNewName;
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}else{
|
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switch ($imageInfo["type"])
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{
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case 1: //gif
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$newName = 'make'.$newNamePre.substr($imageInfo["name"], 0, strrpos($imageInfo["name"], ".")) . ".gif";
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break;
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case 2: //jpg
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$newName = 'make'.$newNamePre.substr($imageInfo["name"], 0, strrpos($imageInfo["name"], ".")) . ".jpg";
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break;
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case 3: //png
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$newName = 'make'.$newNamePre.substr($imageInfo["name"], 0, strrpos($imageInfo["name"], ".")) . ".png";
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break;
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default:
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return 0;
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break;
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}
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}
|
|
switch ($imageInfo["type"])
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{
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case 1: //gif
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$img = imagecreatefromgif($sourFile);
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imagesavealpha($img,true);//这里很重要 意思是不要丢了$sourePic图像的透明色;
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break;
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case 2: //jpg
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$img = imagecreatefromjpeg($sourFile);
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break;
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case 3: //png
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$img = imagecreatefrompng($sourFile);
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imagesavealpha($img,true);//这里很重要 意思是不要丢了$sourePic图像的透明色;
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break;
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default:
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return 0;
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break;
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}
|
if (!$img){
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return 0;
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}
|
|
//生成图片
|
if (function_exists("imagecreatetruecolor")) //GD2.0.1
|
{
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$new = imagecreatetruecolor($width, $height);
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if($imageInfo["type"]==1 || $imageInfo["type"]==3){
|
/*
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$color = imagecolorallocate($new,255,255,255);
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imagecolortransparent($new,$color);
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imagefill($new,0,0,$color);
|
*/
|
imagealphablending($new,false);//这里很重要,意思是不合并颜色,直接用$img图像颜色替换,包括透明色;
|
imagesavealpha($new,true);//这里很重要,意思是不要丢了$thumb图像的透明色;
|
}
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ImageCopyResampled($new, $img, 0, 0, 0, 0, $width, $height, $imageInfo["width"], $imageInfo["height"]);
|
}else{
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$new = imagecreate($width, $height);
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if($imageInfo["type"]==1 || $imageInfo["type"]==3){
|
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$color = imagecolorallocate($new,255,255,255);
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imagecolortransparent($new,$color);
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imagefill($new,0,0,$color);
|
}
|
ImageCopyResized($new, $img, 0, 0, 0, 0, $width, $height, $imageInfo["width"], $imageInfo["height"]);
|
}
|
//*/
|
if($addpreview){
|
$this->previewname=$sourFile;
|
}else{
|
$this->previewname=$this->destination_folder . $newName;
|
}
|
|
if (file_exists($this->previewname)){
|
@unlink($this->previewname);
|
}
|
if($imageInfo["type"]==3){
|
imagepng($new, $this->previewname);
|
}elseif($imageInfo["type"]==1){
|
imagepng($new, $this->previewname);
|
}else{
|
ImageJPEG($new, $this->previewname,100);
|
}
|
|
ImageDestroy($new);
|
ImageDestroy($img);
|
|
return ($this->previewname);
|
}
|
function news_makeThumb($sourFile,$width=100,$height=100,$newNamePre=''){
|
$imageInfo = $this->getInfo($sourFile);
|
$this->destination_folder=str_replace($imageInfo["name"],"",$sourFile);
|
switch ($imageInfo["type"]){
|
case 1: //gif
|
$newName ='make'.$newNamePre.substr($imageInfo["name"], 0, strrpos($imageInfo["name"], ".")) . ".gif";
|
break;
|
case 2: //jpg
|
$newName ='make'.$newNamePre.substr($imageInfo["name"], 0, strrpos($imageInfo["name"], ".")) . ".jpg";
|
break;
|
case 3: //png
|
$newName ='make'.$newNamePre.substr($imageInfo["name"], 0, strrpos($imageInfo["name"], ".")) . ".png";
|
break;
|
default:
|
return 0;
|
break;
|
}
|
switch ($imageInfo["type"])
|
{
|
case 1: //gif
|
$img = imagecreatefromgif($sourFile);
|
break;
|
case 2: //jpg
|
$img = imagecreatefromjpeg($sourFile);
|
break;
|
case 3: //png
|
$img = imagecreatefrompng($sourFile);
|
break;
|
default:
|
return 0;
|
break;
|
}
|
if (!$img){
|
return 0;
|
}
|
//原图片尺寸
|
$srcW = $imageInfo["width"];
|
$srcH = $imageInfo["height"];
|
//等比缩放
|
if(floor($srcW/$srcH) >= 1){
|
$width = ($width > $imageInfo["width"]) ? $imageInfo["width"] : $width;
|
$height=round($srcH*$width/$srcW);
|
}else{
|
$height = ($height > $imageInfo["height"]) ? $imageInfo["height"] : $height;
|
$width=round($srcW*$height/$srcH);
|
}
|
//生成图片
|
if (function_exists("imagecreatetruecolor")) //GD2.0.1
|
{
|
//$new = imagecreatetruecolor($width, $height);
|
$new = imagecreatetruecolor($width, $height);
|
if($imageInfo["type"]==1 || $imageInfo["type"]==3){
|
|
$color = imagecolorallocate($new,255,255,255);
|
imagecolortransparent($new,$color);
|
imagefill($new,0,0,$color);
|
}
|
ImageCopyResampled($new, $img, 0, 0, 0, 0, $width, $height, $imageInfo["width"], $imageInfo["height"]);
|
}else{
|
$new = imagecreate($width, $height);
|
if($imageInfo["type"]==1 || $imageInfo["type"]==3){
|
|
$color = imagecolorallocate($new,255,255,255);
|
imagecolortransparent($new,$color);
|
imagefill($new,0,0,$color);
|
}
|
ImageCopyResized($new, $img, 0, 0, 0, 0, $width, $height, $imageInfo["width"], $imageInfo["height"]);
|
}
|
//*/
|
if (file_exists($this->destination_folder . $newName)){
|
unlink($this->destination_folder . $newName);
|
}
|
|
if($imageInfo["type"]==3){
|
imagepng($new, $this->destination_folder . $newName);
|
}elseif($imageInfo["type"]==1){
|
imagegif($new, $this->destination_folder . $newName);
|
}else{
|
ImageJPEG($new, $this->destination_folder . $newName,100);
|
}
|
|
ImageDestroy($new);
|
ImageDestroy($img);
|
$this->previewname=$this->destination_folder . $newName;
|
return ($this->previewname);
|
}
|
//判断图片是否需要先缩，后上传.
|
function getimage($name,$maxwidth=800,$maxheight=600){
|
list($width,$height,$type,$attr) =getimagesize($name);
|
$imgname=$name;
|
if($width>$maxwidth){
|
$imgname=$this->makeThumb($name,$maxwidth,$maxheight);//生成缩略图
|
unlink($name);//删除原图
|
}
|
return $imgname;
|
}
|
function generateImgName($ftype){
|
$imgname='';
|
$microtime=@explode(" ",microtime());
|
$imgname=ceil($microtime[0]*10000000)+$microtime[1];
|
$imgname.=rand(1,9);
|
$imgname.='.'.$ftype;
|
return ($imgname);
|
}
|
}
|
?>
|
