php layui实现前端多图上传实例

<div class="layui-upload">

  <button type="button" class="layui-btn layui-btn-normal" id="testlist">请选择图片</button>

  <span class="num_pic"></span>

  <div class="layui-upload-list">

    <table class="layui-table">

      <thead>

        <tr>

          <th>文件名</th>

          <th id="pic">图片预览</th>

          <th>大小</th>

          <th>状态</th>

          <th id="cao">操作</th>

        </tr>

      </thead>

      <tbody id="demolist"></tbody>

    </table>

  </div>

  <button type="button" class="layui-btn" id="testlistaction">开始上传</button>

    <span class="num_pic"></span>

</div>

<script type="text/javascript">

  layui.use('upload', function() {

    var $ = layui.jquery,

      upload = layui.upload;

    //多文件列表示例

    var demolistview = $('#demolist'),

      uploadlistins = upload.render({

        elem: '#testlist',

        url: "{url('pic/index/upload')}",

        accept: 'images',

        acceptmime: 'image/*',

        size: 8192,

        multiple: true,

        number: 400,

        auto: false,

        exts: 'jpg|png|jpeg',

        bindaction: '#testlistaction',

        choose: function(obj) {

          var files = this.files = obj.pushfile(); //将每次选择的文件追加到文件队列

          //读取本地文件

          obj.preview(function(index, file, result) {

            var tr = $(['<tr id="upload-' + index + '">', '<td>' + file.name + '</td>', '<td><img src="' + result + '" alt="' + file.name + '" style="width: 100px;height: 40px;"></td>', '<td>' + (file.size / 1014).tofixed(1) + 'kb</td>', '<td>等待上传</td>', '<td>', '<button class="layui-btn layui-btn-xs demo-reload layui-hide">重传</button>', '<button class="layui-btn layui-btn-xs layui-btn-danger demo-delete">删除</button>', '</td>', '</tr>'].join(''));

            //单个重传

            tr.find('.demo-reload').on('click', function() {

              obj.upload(index, file);

              $("#upload-" + index).find("td").eq(2).html((file.size / 1014).tofixed(1) + 'kb');

            });

            //删除

            tr.find('.demo-delete').on('click', function() {

              delete files[index]; //删除对应的文件

              tr.remove();

              uploadlistins.config.elem.next()[0].value = ''; //清空 input file 值，以免删除后出现同名文件不可选

            });

            demolistview.append(tr);

            $(".num_pic").text("总共【" + demolistview.find("tr").length + "】张图片");

          });

        },

        done: function(res, index, upload) {

          if(res.code == 0) { //上传成功

            $("#cao").text("地址");

            var tr = demolistview.find('tr#upload-' + index),

              tds = tr.children();

            tds.eq(3).html('<span style="color: #5fb878;">上传成功</span>');

            tds.eq(4).html('<input type="text" name="imgs[]" value="' + res.file + '" class="layui-input" />'); //清空操作

            return delete this.files[index]; //删除文件队列已经上传成功的文件

          }

          this.error(index, upload);

        },

        alldone: function(obj) { //当文件全部被提交后，才触发

          layer.msg("上传文件数量：【" + obj.total + "】张，上传成功：【" + obj.successful + "】张，失败：【" + obj.aborted + "】", {

            time: 3000

          });

          console.log(obj.total); //得到总文件数

          console.log(obj.successful); //请求成功的文件数

          console.log(obj.aborted); //请求失败的文件数

        },

        error: function(index, upload) {

          var tr = demolistview.find('tr#upload-' + index),

            tds = tr.children();

          tds.eq(2).html('<span style="color: #ff5722;">上传失败</span>');

          tds.eq(4).find('.demo-reload').removeclass('layui-hide'); //显示重传

        }

      });

  });

</script>

public function uploadaction(){

    $file=$_files['file'];

    $root_url = 'uploadfiles/pic/image/';

    if (!is_uploaded_file($file['tmp_name'])){

      $data = array('code'=>1,'msg'=>"错误");

      exit(json_encode($data,0));

    }

   /* $root_url.=date('ymd').'/';*/

    $ext = pathinfo($file['name']);

    $num=makenum($this->memberinfo['id']);

    $root_url.=$num.'/';

    if (!is_dir($root_url)) {

      mkdir($root_url,0777, true);

    }

    $pa=file_list::get_file_list($root_url);

    $na=count($pa) + 1;

    if ($na<10){

      $name=$num.'-000'.$na;

    }elseif($na<100){

      $name=$num.'-00'.$na;

    }elseif($na<1000){

      $name=$num.'-0'.$na;

    }else{

      $name=$num.'-'.$na;

    }

    $n=$root_url.$name.".".$ext['extension'];

    $result=move_uploaded_file($file['tmp_name'],$n);

    if ($result){

      exit(json_encode(array("code"=>0,"msg"=>"ok","file"=>$n,"size"=>$file['size']),0));

    }else{

      exit(json_encode(array("code"=>1,"msg"=>"false","file"=>$n,"size"=>$file['size']),0));

    }

  }