Clearing a PHP page

Question

I'm working with an async file upload tool called plupload. I have everything set up and working the way I want on a standalone page, but I have a problem. I'm transferring my code to a content management system that stores all per-page PHP in a database - it also parses the PHP snippets, I think, to check that everything's error free.

The problem is this. I'd like to return a response on a successful upload.

On a standalone page, I use die('A response') and halt the PHP before the HTML section. In this case, I can't, because the CMS will still give the rest of the page in full.

I need to submit the form to self, because I'm incorporating some non-javascript stuff for degraded form validation etc.

Does anyone have an easy solution? I'm currently testing for any async response at all (after a post, I mean) and calling that a 'success' on completed upload, if you follow what I mean by that. I don't really like it. I wondered about forcing a server error on any non-success (if I can). Would that be especially bad practice?

Answer 1

I'm using a technique inspired by the above MySQL suggestion.

plupload includes a FileUploaded event.

I'm generating a random number before firing the upload and posting that along with each file. Once I'm done moving the file around at the server side (an email attachment, actually) - if the mail send is successful, I write a small text file using the random number as the name and 'success' or similar as the content. Then, when plupload's FileUploaded is fired, I make a new async request to a small standalone PHP file, passing over the same random number, and it reads the file before unlinking.

Thanks again for the help. Seems to work quite nicely.

Answer 2

If you're willing to overwrite the index.php file of your CMS, this will work.

• Rename the current index.php to something else. We'll say 'cms.php'. You may want to change the permissions so only your server can read from it.
• Create a new PHP file called 'index.php'. We're using an example from the include docs (#6) in the PHP manual. Here's the (modified) code.
  • note: the indentation get's all screwy, so I'll pastebin it instead. feel free to edit

If at any point in any part of your site you want to fail it, you can just stick the real data in $GLOBALS['failContent'], and the user will never see any CMS generated output.

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I'm not sure what effect die would have when doing this, but I believe it will prevent us from outputting anything... but I'm not sure. Does anyone know?

Answer 3

Put this code in php file

<?php
$uploaddir='../uploads/';
$uploadfile=mysql_prep($uploaddir.basename($_FILES['uploadfile']['name']));
if(move_uploaded_file($_FILES['uploadfile']['tmp_name'], $uploadfile))
 {
  $name=mysql_prep(($_FILES['uploadfile']['name']));
  $type=mysql_prep(($_FILES['uploadfile']['type']));
  $data=($uploadfile);
  $size= intval($_FILES['uploadfile']['size']);
  #echo $data;
  $branch=mysql_prep($_POST['branch']);
  $sem=mysql_prep($_POST['sem']);
  $query="INSERT INTO upload_file (name,type,data,size,created,branch_id,sem_id) VALUES ('{$name}','{$type}','{$data}','{$size}',NOW(),'{$branch}','{$sem}')";
  $result=mysql_query($query);
  if($result){
      echo"<h2>file successfully uploaded<h2>";
      redirect_to(root."afterlogin/upload.php?spload=0112");
  }
  else{
      echo" the file you insert can't be uploaded";
  }

and include this to html file

 <?php if(isset($_GET['spload'])){
 $upload_process="you have successfully uploaded your file. ";
 $upr=1;   

  }else{

    $upr=0;

 }

?>