PHP and file write permissions

Question

I have a folder with 3 different php scripts in it. email.php txt.php android.php

I pipe emails and/or txts to their respective scripts, and use http POST to send da

Answer 1

Ok, so with the help of everyone who responded, I have worked out a solution: The email and txt scripts are run by user 'owner' and the htmlPOST is run by user '?'

I had to make the folder chmod 777 in order for user '?' to work

When each script runs, it checks for the file 'output.php'. If it didn't exist, then after the fclose I added a chmod 777 - that way the scripts run by other users could open/write it later. If the file already existed, then I didn't add the chmod because if it was the wrong user it created an error. So a simple example of it:

$data = '//data fields condensed into a single string obtained from email or txt';
$filename= "output.php";

if (file_exists($filename)){
    $newFile= fopen($filename, 'w+');
    fwrite($newFile, $data);
    fclose($newFile);
} else {
    $newFile= fopen($filename, 'w+');
    fwrite($newFile, $data);
    fclose($newFile);

    chmod($filename, 0777);
}

Thanks for your help!