Check for files (PHP) with XML response

[kney]

Hi,

 

I currently have this code:

 

<?php

function respond_xml($status, $message)
{
    $out = new XMLWriter();
    $out->openURI("php://output");
    $out->setIndent(true);

    $out->startDocument("1.0", "ISO-8859-1");

    $out->startElement("statuscheck");
    $out->writeElement("status", $status);
    $out->writeElement("message", $message);
    $out->endElement();

    $out->endDocument();
    
    $out->flush();
}

function main()
{
    header("Content-type: text/xml");

    if (!isset($_GET["file"]))
        respond_xml("ERROR", "File parameter missing");
    else if (file_exists($_GET["file"]))
            return respond_xml("OK", "File exists");
    else
           return respond_xml("NOT OK", "File does not exist");
}

main();

?>

 

This code works and gives a correct XML response when you type in for example "http://localhost:8080/php/script.php?file=test" it's says:

<statuscheck>
<status>NOT OK</status>
<message>File does not exist</message>
</statuscheck>

 

Now, I need it to be able to check it every 5 seconds so i've use this code

header("Refresh: 5; URL=http://localhost:8080/php/script.php?file=test");

 

Here's my problem:

 

The first 5 or 10 tries it should say "file not found".

After the 10th try it should automatically say "file found".

BUT it should also time out after like 50 tries and it hasn't found the file.

But i don't know how to do this..

 

[kney]

anyone?

[kney]

nobody can figure this out?