PHP download file code [can be named by yourself]

 Use the get method to pass in the parameters http://domain/download.php?file='savepath on server'&name='file name you want'

//Pass in the file path and file name, used to read files and rename files respectively
if( empty($_GET['file']) || empty($_GET['name'])){
 echo'<script> alert("Find File not found...!"); location.replace ("index.php") </script>'; exit();
}
//File path
$file=$_GET['file '];
//File name [i.e. the title of the file, not the name saved on the server]
$name=$_GET['name'];
//Get the file suffix
$suffix = substr(strrchr($file , '.'), 1);

if(is_file('./'.$file)) {
 header("Content-Type: application/force-download");
 header("Content-Disposition: attachment ; filename=".$name.'.'.$suffix);
 readfile('./'.$file);
 exit;
 }else{
 echo "File does not exist! ";
 exit;
 }
 ?>

PHP