php combined with layui front-end to realize multi-image upload

Front-end html code

<div class="layui-upload">
    <button type="button" class="layui-btn layui-btn-normal" id="testList">請選擇圖片</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">圖片預(yù)覽</th>
                    <th>大小</th>
                    <th>狀態(tài)</th>
                    <th id="cao">操作</th>
                </tr>
            </thead>
            <tbody id="demoList"></tbody>
        </table>
    </div>
    <button type="button" class="layui-btn" id="testListAction">開始上傳</button>
        <span class="num_pic"></span>
</div>

js code

<script type="text/javascript">
    layui.use(&#39;upload&#39;, function() {
        var $ = layui.jquery,
            upload = layui.upload;
        //多文件列表示例
        var demoListView = $(&#39;#demoList&#39;),
            uploadListIns = upload.render({
                elem: &#39;#testList&#39;,
                url: "{url(&#39;pic/index/upload&#39;)}",
                accept: &#39;images&#39;,
                acceptMime: &#39;image/*&#39;,
                size: 8192,
                multiple: true,
                number: 400,
                auto: false,
                exts: &#39;jpg|png|jpeg&#39;,
                bindAction: &#39;#testListAction&#39;,
                choose: function(obj) {
                    var files = this.files = obj.pushFile(); //將每次選擇的文件追加到文件隊列
                    //讀取本地文件
                    obj.preview(function(index, file, result) {
                        var tr = $([&#39;<tr id="upload-&#39; + index + &#39;">&#39;, &#39;<td>&#39; + file.name + &#39;</td>&#39;, &#39;<td><img src="/static/imghw/default1.png"  data-src="&#39; + result + &#39;"  class="lazy"   alt="&#39; + file.name + &#39;"   style="max-width:90%"></td>&#39;, &#39;<td>&#39; + (file.size / 1014).toFixed(1) + &#39;kb</td>&#39;, &#39;<td>等待上傳</td>&#39;, &#39;<td>&#39;, &#39;<button class="layui-btn layui-btn-xs demo-reload layui-hide">重傳</button>&#39;, &#39;<button class="layui-btn layui-btn-xs layui-btn-danger demo-delete">刪除</button>&#39;, &#39;</td>&#39;, &#39;</tr>&#39;].join(&#39;&#39;));
                        //單個重傳
                        tr.find(&#39;.demo-reload&#39;).on(&#39;click&#39;, function() {
                            obj.upload(index, file);
                            $("#upload-" + index).find("td").eq(2).html((file.size / 1014).toFixed(1) + &#39;kb&#39;);
                        });
                        //刪除
                        tr.find(&#39;.demo-delete&#39;).on(&#39;click&#39;, function() {
                            delete files[index]; //刪除對應(yīng)的文件
                            tr.remove();
                            uploadListIns.config.elem.next()[0].value = &#39;&#39;; //清空 input file 值，以免刪除后出現(xiàn)同名文件不可選
                        });
                        demoListView.append(tr);
                        $(".num_pic").text("總共【" + demoListView.find("tr").length + "】張圖片");
                    });
                },
                done: function(res, index, upload) {
                    if(res.code == 0) { //上傳成功
                        $("#cao").text("地址");
                        var tr = demoListView.find(&#39;tr#upload-&#39; + index),
                            tds = tr.children();
                        tds.eq(3).html(&#39;<span style="color: #5FB878;">上傳成功</span>&#39;);
                        tds.eq(4).html(&#39;<input type="text" name="imgs[]"  value="&#39; + res.file + &#39;" class="layui-input" />&#39;); //清空操作
                        return delete this.files[index]; //刪除文件隊列已經(jīng)上傳成功的文件
                    }
                    this.error(index, upload);
                },
                allDone: function(obj) { //當文件全部被提交后，才觸發(fā)
                    layer.msg("上傳文件數(shù)量：【" + obj.total + "】張，上傳成功：【" + obj.successful + "】張，失敗：【" + obj.aborted + "】", {
                        time: 3000
                    });
                    console.log(obj.total); //得到總文件數(shù)
                    console.log(obj.successful); //請求成功的文件數(shù)
                    console.log(obj.aborted); //請求失敗的文件數(shù)
                },
                error: function(index, upload) {
                    var tr = demoListView.find(&#39;tr#upload-&#39; + index),
                        tds = tr.children();
                    tds.eq(2).html(&#39;<span style="color: #FF5722;">上傳失敗</span>&#39;);
                    tds.eq(4).find(&#39;.demo-reload&#39;).removeClass(&#39;layui-hide&#39;); //顯示重傳
                }
            });
    });
</script>

Backend code

public function uploadAction(){
        $file=$_FILES['file'];
        $root_url =  'uploadfiles/pic/image/';
        if (!is_uploaded_file($file['tmp_name'])){
            $data = array('code'=>1,'msg'=>"錯誤");
            exit(json_encode($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.&#39;-000&#39;.$na;
        }elseif($na<100){
            $name=$num.&#39;-00&#39;.$na;
        }elseif($na<1000){
            $name=$num.&#39;-0&#39;.$na;
        }else{
            $name=$num.&#39;-&#39;.$na;
        }
        $n=$root_url.$name.".".$ext[&#39;extension&#39;];
        $result=move_uploaded_file($file[&#39;tmp_name&#39;],$n);
        if ($result){
            exit(json_encode(array("code"=>0,"msg"=>"ok","file"=>$n,"size"=>$file[&#39;size&#39;]),0));
        }else{
            exit(json_encode(array("code"=>1,"msg"=>"false","file"=>$n,"size"=>$file[&#39;size&#39;]),0));
        }
    }

Upload effect:

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