[mtha]

look like boofo got right into the idea.

Thank you very much Xenon

PHP Code:

AND strlen($post['message']) <= 400) 


Boofo, use

PHP Code:

    $dp_settings = array(
        'timespan' => 3600 * 24,// how many seconds after the last post the new post is defined as doublepost
        'spacer' => "\n\n",    // What should be between the old post and the new one (default: two empty lines)
        'editedbymsg' => 'Automerged Doublepost', // If left blank no edited by will appear
        'maxchars' => 400, // Max chars where post is merged.
    ); 


and

PHP Code:

AND strlen($post['message']) <=  $dp_settings['maxchars'] ) 


well, should you exclude Unregistered Users from the post, or checking IPs for those unregistered too? otherwise, you wont know "which unregistered user" post what