//前台HomeController.php在function jizhi_details($id){}中使用
if(array_key_exists('attchment',$details)){
     $details['attchment']= ffix($details['attchment']) ;
}

//详情页单附件数据修正，函数加到conf/FunctionsExt.php
function ffix($url){
    if($url){
        $fres = M('pictures')->find(['litpic'=> $url]);
        $attchment=[];
        if($fres){
          $attchment['fid'] = $fres['id'];
          $attchment['url'] = $fres['litpic'];
          $attchment['ftype'] = $fres['filetype'];
          $attchment['ftime'] = date('Y-m-d',$fres['addtime']);
          $attchment['fsize'] =usize($fres['size']);
         }else{
         $attchment['fid'] = 0;  
        }
    }else{
       $attchment['fid'] = 0;     
    }
    return $attchment;
}

//详情页使用附件字段信息
{$jz['attchment']['fid']}
{$jz['attchment']['litpic']}

//放入以下函数到conf/FunctionsExt.php
function fileFix($str){
    if($str){
    $segments = explode('||', $str);
    $result = [];
    foreach ($segments as $segment) {
        $segment = trim($segment);
        if (empty($segment)) continue;
        $parts = explode('|', $segment, 2);
        if (count($parts) === 2) {
            $url = trim($parts[0]);
            $title = trim($parts[1]);
            $result[] = [
                'title' => $title,
                'url'   => $url,
            ];
        }
    }
    return $result;
   }else{
     return [];  
   }
}
 //前台使用
 {if($jz['files'])}
    <ul>
       {php $files = fileFix($jz['files']) /}
         {foreach $files as $v}
        <li>
            <img src="{$v['url']}" alt="{$v['title']}" loading="lazy">
            <p>{$v['title']}</p>
        </li>
        {/foreach}
    
    </ul>
 {/if}

1.放入以下函数到conf/FunctionsExt.php
//修正多附件字段
    function fixFile($data){
           if($data){
                $inputStr = $data;
                $segments = explode('||', $inputStr);
                $segments = array_filter($segments, function($item) {
                    return trim($item) !== '';
                });
                //提取标题和顺序
                $pathToTitle = [];  
                $pathOrderMap = [];  
                $order = 1;
                foreach ($segments as $segment) {
                    if (empty(trim($segment))) continue;
                    $parts = explode('|', $segment, 2); 
                    if (count($parts) === 2) {
                        $path = trim($parts[0]);
                        $title = trim($parts[1]);
                        $pathToTitle[$path] = $title;
                        $pathOrderMap[$path] = $order++;
                    }
                }
                
     
                //获取url字符串
                $quotedUrls = [];
                foreach ($segments as $item) {
                    $parts = explode('|', $item, 2); 
                    $url = trim($parts[0] ?? '');
                    if (!empty($url)) {
                        $quotedUrls[] = '"' . $url . '"';
                    }
                }
                
                $orders = 'addtime desc';
                $sql = ' litpic in ('.implode(',',$quotedUrls).') ';
                $fres = M('pictures')->findAll($sql,$orders);
                
                foreach($fres as $k=>$v){
                     $url = $fres[$k]['litpic'];
                     $fres[$k]['title'] = $pathToTitle[$url]; 
                     $fres[$k]['orders'] = $pathOrderMap[$url];
                }
                usort($fres, function($a, $b) {
                    return $a['orders'] - $b['orders'];
                });
               return $fres;
             }else{
                 return [];  
             }   
    }
2.前台HomeController.php在function jizhi_details($id){}中使用
//重构附件files字段

    if(array_key_exists('files',$details)){
        $this->files = fixFile($details['files']);
    }
3.在前台Common控制器添加下载处理函数
    function download() {
        if($_POST){
            $id = $this->frparam('fid',1,'POST');
            $file_name =$this->frparam('file_name',1,'POST');
            if(!$id||!$file_name){
               http_response_code(405);
               //echo "错误：参数缺失";
               exit; 
            }
            if (!preg_match('/^[\w\x{4e00}-\x{9fa5}\-]+$/u', $file_name)) {
            http_response_code(405);
            //echo "错误：文件名包含非法字符";
            exit;
           }
            $fres = M('pictures')->find(['id'=> $id]);
            if($fres){
                $file_url = $fres['litpic'];
                $now =date('Ymd_His', time());
                $download_name = $file_name.$now. '.' . $fres['filetype'];
                if (file_exists(APP_PATH.$file_url) && is_file(APP_PATH.$file_url)) {
                    $fileSize = filesize(APP_PATH.$file_url);
                            header('Content-Description: File Transfer');
                            header('Content-Type: application/octet-stream');
                            header('Content-Disposition: attachment; filename="' . basename($download_name) . '"');
                            header('Expires: 0');
                            header('Cache-Control: must-revalidate');
                            header('Pragma: public');
                            header('Content-Length: ' . $fileSize);
                    readfile(APP_PATH.$file_url);
                    exit;
                }else{
                    http_response_code(404); 
                    //echo "错误：文件不存在。";
                    exit; 
                }
                
            }else{
              http_response_code(404);  
              //echo "错误：文件不存在。";
              exit;    
            }
         
        }else{
          http_response_code(405);  
          exit;
        }
    } 

4.前端详情页模板使用
    {foreach $rjfile as $v}
        <li>
          {$v['id']}
          {$v['title']}
          {$v['filetype']}
          {$v['size']}
          {fun date('Y-m-d',$v['addtime'])}
         <a href="javascript:;" class="downf" fid="{$v['id']}" fname="{$v['title']}">下载</a>
        </li>
    {/foreach}
5.结合js实现文件下载
<script type="text/javascript">
 function download(id,filename){
  $('body').append(`<form method="post" target="_blank" action="/common/download.html" id="downloadForm"><input type="hidden" name="fid" value="${id}" required><input type="hidden"  name="file_name" value="${filename}" required></form>`);
  setTimeout(function(){
    $("#downloadForm").submit();
    setTimeout(function(){
        $("#downloadForm").remove()
        
    },1000)
  },500)
}
$(function(){
    $(".downf").each(function(){
        $(this).click(function(){
            var fid = $(this).attr("fid");
            var fname = $(this).attr("fname");
           download(fid,fname) 
        })
    })
    
})
</script>

目的是在不暴露后台附件地址情况下前台利用附件id从pictures表里查询附件地址执行下载；
1.首先给模型添加单附件字段attachment
2.找到前台控制器HomeController.php里面栏目处理器函数function jizhi(){}里面的循环输出url的地方，加上处理附件信息

foreach($data as $k=>$v){
    if(!isset($v['url'])){
        $data[$k]['url'] = gourl($v,$v['htmlurl']);
    }
    //返回附件信息s
    if(!isset($v['fid'])){
        if(isset($v['attachment'])){
        $fres = M('pictures')->find(['litpic'=> $data[$k]['attachment']]);
        if($fres){
          $data[$k]['fid'] = $fres['id'];
          $data[$k]['ftype'] = $fres['filetype'];
          $data[$k]['ftime'] = date('Y-m-d',$fres['addtime']);
          $data[$k]['fsize'] =usize($fres['size']);
        }else{
          $data[$k]['fid'] = 0;  
        }
        }else{
          $data[$k]['fid'] = 0;     
        }
           
    }
    //返回附件信息e
}

3.在前台控制器添加下载处理函数

function download() {
    if($_POST){
        $id = $this->frparam('fid',1,'POST');
        $file_name =$this->frparam('file_name',1,'POST');
        if(!$id||!$file_name){
           http_response_code(405);
           //echo "错误：参数缺失";
           exit; 
        }
        if (!preg_match('/^[\w\x{4e00}-\x{9fa5}\-]+$/u', $file_name)) {
        http_response_code(405);
        //echo "错误：文件名包含非法字符";
        exit;
       }
        $fres = M('pictures')->find(['id'=> $id]);
        if($fres){
            $file_url = $fres['litpic'];
            $now =date('Ymd_His', time());
            $download_name = $file_name.$now. '.' . $fres['filetype'];
            if (file_exists(APP_PATH.$file_url) && is_file(APP_PATH.$file_url)) {
                $fileSize = filesize(APP_PATH.$file_url);
                        header('Content-Description: File Transfer');
                        header('Content-Type: application/octet-stream');
                        header('Content-Disposition: attachment; filename="' . basename($download_name) . '"');
                        header('Expires: 0');
                        header('Cache-Control: must-revalidate');
                        header('Pragma: public');
                        header('Content-Length: ' . $fileSize);
                readfile(APP_PATH.$file_url);
                exit;
            }else{
                http_response_code(404); 
                //echo "错误：文件不存在。";
                exit; 
            }
            
        }else{
          http_response_code(404);  
          //echo "错误：文件不存在。";
          exit;    
        }
     
    }else{
      http_response_code(405);  
      exit;
    }
} 

Ueditor编辑器在上传图片后，所插入的img标签中，title、alt属性设置的值可能不是我们希望的值，同时，当鼠标移到图片上时会出现title属性值的内容或者添加自定loading属性。此时，可通过修改ueditor.all.js文件中这几个属性的赋值内容，操作如下图所示：
//1.修改过滤

var notTransAttrs = {
    'href':1,
    'src':1,
    '_src':1,
    '_href':1,
    'cdata_data':1,
    'class':1,
    'loading':1
};

//2.修改回调

function callback(){
                try{
                    var link, json, loader,
                        body = (iframe.contentDocument || iframe.contentWindow.document).body,
                        result = body.innerText || body.textContent || '';
                    json = (new Function("return " + result))();
                    link = me.options.imageUrlPrefix + json.url;
                    if(json.state == 'SUCCESS' && json.url) {
                        loader = me.document.getElementById(loadingId);
                        loader.setAttribute('src', link);
                        loader.setAttribute('_src', link);
                        loader.setAttribute('loading', 'lazy');
                       // loader.setAttribute('title', json.title || '');
                        loader.setAttribute('title', '');
                        loader.setAttribute('alt', json.original || '');
                        loader.removeAttribute('id');
                        domUtils.removeClasses(loader, 'loadingclass');
                    } else {
                        showErrorLoader && showErrorLoader(json.state);
                    }
                }catch(er){
                    showErrorLoader && showErrorLoader(me.getLang('simpleupload.loadError'));
                }
                form.reset();
                domUtils.un(iframe, 'load', callback);
}