php to implement a simple way to download files on the current page

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)){ //Check whether the file exists      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'); //Open the file    //Input file tag    header("Content-type: application/octet-stream"); 
    header("Accept-Ranges: bytes"); 
    header("Accept-Length: ".filesize($file_url)); 
    header("Content-Disposition: attachment; filename=".$file_name); 
    //Output file content    echo fread($file_type,filesize($file_url)); 
    fclose($file_type);
}

html code

&lt;iframe  src="" style="display: none;"&gt;&lt;/iframe&gt;
$(function(){
      $('.downLoad').click(function(){
        var path = $(this).attr('path');
        $('#iframe').attr('src',"php file path?path="+path);      })
    })

Just put the above code into your program and execute it.

The above is all the content of the simple method of clicking to download files on the current page of php brought to you. I hope it will be helpful to everyone and support me more~