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通过微信WEUI实现图片上传,后台PHP该如何处理?

时间:2021-07-01 10:21:17 帮助过:6人阅读

问题:通过微信WEUI实现图片上传,后台PHP该如何处理?

1.目前遇到的问题为应用的weui图片上传框架,但代码中预览部分li获取到了类型是blob的图片。但只有一个input,通过ajax提交到php,只能获取到最后一张图片。

<p class="weui-uploader__bd">
    <ul class="weui-uploader__files" id="uploaderFiles" >
        <li class="weui-uploader__file" style="background-image:url('/Public/Admin/images/pic_160.png')"></li>
        <li class="weui-uploader__file weui-uploader__file_status" style="background-image:url('/Public/Admin/images/pic_160.png')">
            <p class="weui-uploader__file-content">50%</p>
        </li>
    </ul>
    <p class="weui-uploader__input-box">
        <input id="uploaderInput" name="photo" class="weui-uploader__input" type="file" accept="image/*" />
    </p>
</p>

2.通过后台进行$_FILES只能获取到一个input。怎么才能获取所有的?大家用weui上传图片的时候是怎么处理的呢?

贴上图片photo不加[]的情况下,获取的到的是

1.png

加[]获取返回的是:

2.png

解决方法

 //解决思路如下:  通过改写他的文件隐藏域,每次选择一个图片之后,自动隐藏当前file,然后通过js插入一个新的空文件 type=“file”,这样就可以实现多文件上传。改写代码如下:  
      
         $(function(){
            var tmpl = '<li id="#imgname#_li" class="weui-uploader__file" style="background-image:url(#url#)"></li>',
                $gallery = $("#gallery"), $galleryImg = $("#galleryImg"),
                $uploaderInput = $("#uploaderInput"),
                $uploaderFiles = $("#uploaderFiles")
                ;
            //此处的on 需要改成 live ,因为jquery插入html,js事件会失效,采用live
            $uploaderInput.live("change", function(e){
                var src, url = window.URL || window.webkitURL || window.mozURL, files = e.target.files;
                for (var i = 0, len = files.length; i < len; ++i) {
                    var file = files[i];
    
                    if (url) {
                        src = url.createObjectURL(file);
                    } else {
                        src = e.target.result;
                    }
                    var src_split = src.split('/'); 
                    $uploaderFiles.append($(tmpl.replace('#url#', src).replace('#imgname#', src_split[src_split.length-1])));
                     
                     //其中img_str 为我自己写的隐藏文本框,用来存放所有的图片名称组成的字符,类似"'名称1','名称2','名称3'",因为我用这个隐藏框的值,来删除页面页面的指定图片。
                    if($("#img_str").val() == '' || $("#img_str").val() == null){
                       $("#img_str").val("'"+src_split[src_split.length-1]+"'");
                    }else{
                       $("#img_str").val($("#img_str").val()+",'"+src_split[src_split.length-1]+"'");
                    }
                    
                    //开启隐藏上传 p
                    $(this).after('<input id="uploaderInput"   name="result_file[]"  class="weui-uploader__input" type="file"   accept="image/*" multiple/>');
                    $(this).hide();
                    $(this).attr({id:""+src_split[src_split.length-1]+"_input"}); 
                }
            });
            $uploaderFiles.on("click", "li", function(){
                $galleryImg.attr("style", this.getAttribute("style"));
                $gallery.fadeIn(100);
            });
            $gallery.on("click", function(){
                $gallery.fadeOut(100);
            });
         
             //删除图片  删除图片的代码也贴出来。
             $(".weui-gallery__del").click(function(){ 
                  var imgback = $(this).parent("p").prev().attr("style");
                  var imgback_array= imgback.split(')');
                  imgback_array= imgback_array[0].split('/');
                  $("#"+imgback_array[imgback_array.length-1]+"_input").remove();
                  $("#"+imgback_array[imgback_array.length-1]+"_li").remove();
    
                  var img_str = $("#img_str").val().split(',');
                  var img_str_new = '';
                  for(var i=0;i<img_str.length;i++){
                     if(img_str[i] != "'"+imgback_array[imgback_array.length-1]+"'"){
                         if(img_str_new == ''){
                             img_str_new = img_str[i];
                         }else{
                               img_str_new = img_str_new+","+img_str[i];
                         }
                     }
                  }
                  $("#img_str").val(img_str_new);
             }); 
        });
     
     
     
     /**
     
     后台获取数打印出来 如下 包含3张图片
     **/
     array (size=2)
  'error' => 
    array (size=0)
      empty
  'files' => 
    array (size=3)
      0 => 
        array (size=14)
          'file_name' => string 'e2dafa6a5f06dc34004607e1f00a4824.jpg' (length=36)
          'file_type' => string 'image/jpeg' (length=10)
          'file_path' => string 'E:/wamp/wamp/www/test/js/fileUpload/server/upload/tsjy/' (length=64)
          'full_path' => string 'E:/wamp/wamp/www/test/js/fileUpload/server/upload/tsjy/e2dafa6a5f06dc34004607e1f00a4824.jpg' (length=100)
          'raw_name' => string 'e2dafa6a5f06dc34004607e1f00a4824' (length=32)
          'orig_name' => string '-0.jpg' (length=6)
          'client_name' => string '6880_jpg_wh300.jpg' (length=18)
          'file_ext' => string '.jpg' (length=4)
          'file_size' => float 93.32
          'is_image' => boolean true
          'image_width' => int 960
          'image_height' => int 300
          'image_type' => string 'jpeg' (length=4)
          'image_size_str' => string 'width="960" height="300"' (length=24)
      1 => 
        array (size=14)
          'file_name' => string 'ba7a0cc5930d19c6b1abfd795b3eb4d3.jpg' (length=36)
          'file_type' => string 'image/jpeg' (length=10)
          'file_path' => string 'E:/wamp/wamp/www/test/js/fileUpload/server/upload/tsjy/' (length=64)
          'full_path' => string 'E:/wamp/wamp/www/test/js/fileUpload/server/upload/tsjy/ba7a0cc5930d19c6b1abfd795b3eb4d3.jpg' (length=100)
          'raw_name' => string 'ba7a0cc5930d19c6b1abfd795b3eb4d3' (length=32)
          'orig_name' => string '-1.jpg' (length=6)
          'client_name' => string '4856_jpg_wh300.jpg' (length=18)
          'file_ext' => string '.jpg' (length=4)
          'file_size' => float 92.95
          'is_image' => boolean true
          'image_width' => int 1190
          'image_height' => int 300
          'image_type' => string 'jpeg' (length=4)
          'image_size_str' => string 'width="1190" height="300"' (length=25)
      2 => 
        array (size=14)
          'file_name' => string 'fc0e75063c34f102a3a67fd17aa54a18.jpg' (length=36)
          'file_type' => string 'image/jpeg' (length=10)
          'file_path' => string 'E:/wamp/wamp/www/test/js/fileUpload/server/upload/tsjy/' (length=64)
          'full_path' => string 'E:/wamp/wamp/www/test/js/fileUpload/server/upload/tsjy/fc0e75063c34f102a3a67fd17aa54a18.jpg' (length=100)
          'raw_name' => string 'fc0e75063c34f102a3a67fd17aa54a18' (length=32)
          'orig_name' => string '-2.jpg' (length=6)
          'client_name' => string '4873_jpg_wh300.jpg' (length=18)
          'file_ext' => string '.jpg' (length=4)
          'file_size' => float 214.92
          'is_image' => boolean true
          'image_width' => int 1152
          'image_height' => int 300
          'image_type' => string 'jpeg' (length=4)
          'image_size_str' => string 'width="1152" height="300"' (length=25)

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