php控制器中代码
public function downFile($path = ‘‘){
if(!$path) header("Location: /"); download($path); }function download($file_url,$new_name=‘‘){
if(!isset($file_url)||trim($file_url)==‘‘){ echo ‘500‘; } if(!file_exists($file_url)){ //检查文件是否存在 echo ‘404‘; } $file_name=basename($file_url); $file_type=explode(‘.‘,$file_url); $file_type=$file_type[count($file_type)-1]; $file_name=trim($new_name==‘‘)?$file_name:urlencode($new_name); $file_type=fopen($file_url,‘r‘); //打开文件 //输入文件标签 header("Content-type: application/octet-stream"); header("Accept-Ranges: bytes"); header("Accept-Length: ".filesize($file_url)); header("Content-Disposition: attachment; filename=".$file_name); //输出文件内容 echo fread($file_type,filesize($file_url)); fclose($file_type);}<iframe id="iframe" src="" style="display: none;"></iframe>
$(function(){ $(‘.downLoad‘).click(function(){ var path = $(this).attr(‘path‘); $(‘#iframe‘).attr(‘src‘,"php文件路径?path="+path); }) })原文：https://www.cnblogs.com/alexguoyihao/p/9112552.html