Example of how to use php to download files by clicking on the current page

This article mainly introduces the example of using PHP to download files by clicking on the current page. Interested friends can refer to it. I hope it will be helpful to everyone.

Code in php controller

public function downFile($path = ''){
    if(!$path) header("Location: /");
    download($path);
  }

download file download function code

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);
}

html code

<iframe id="iframe" src="" style="display: none;"></iframe>
$(function(){
      $(&#39;.downLoad&#39;).click(function(){
        var path = $(this).attr(&#39;path&#39;);
        $(&#39;#iframe&#39;).attr(&#39;src&#39;,"php文件路径?path="+path);
      })
    })

Just put the above code into your program and execute it

The above is the entire content of this article, I hope It will be helpful to everyone’s study.

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