PHP Script Version Checking/Notification

Question

How can I check the version of my script against an online file to see if it\'s the latest version?

For clarification, I\'m talking about a script I wrote, not the v

Answer 1

To specify the second (more simple) solution phjr proposed:

Have a file version.txt on your own public server and include the following function into your deployed project/script:

define('REMOTE_VERSION', 'http://your.public.server/version.txt');

// this is the version of the deployed script
define('VERSION', '1.0.1');

function isUpToDate()
{
    $remoteVersion=trim(file_get_contents(REMOTE_VERSION));
    return version_compare(VERSION, $remoteVersion, 'ge');
}

version.txt should just contain the most recent version number, e.g.:

1.0.2