PHP：如何在上传之前扫描任何文件中的病毒

Question

在上传之前有没有办法检查文件，它有病毒吗？

我的代码上传是： -

function uploadfile()
{
    $allowedExtensions = array("jpg","jpeg","gif","png","doc","pdf","ppt","zip","rar","xls","pptx","docx","xlsx");
    $split=explode(".",$_FILES["filework"]["name"]);    
    $type=strtolower($split[sizeof($split)-1]); 
    $rname=time().".".$type;
    if (in_array(end($split),$allowedExtensions)) { 

    $destination = "uploads/".$rname;
    $temp_file = $_FILES['filework']['tmp_name'];
    move_uploaded_file($temp_file,$destination);
    return $rname;
    }
    else {return false;}

}

Answer 1

不，必须先将文件上传到您的服务器，然后再进行扫描。如果您还没有该文件，您如何扫描它？