<?php

while (true) {

    $file = '/home/kimse/Games/StarWarsGalaxies/profiles/inckie/Basilisk/281477446131588_chatlog.txt';

    $firstline = false;
    if ($handle = fopen($file, 'c+')) {
        if (!flock($handle, LOCK_EX)) {
            fclose($handle);
            continue;
        }
        $offset = 0;
        $len    = filesize($file);
        while (($line = fgets($handle, 4096)) !== false) {

            if (!$firstline) {
                $firstline = $line;
                $offset    = strlen($firstline);
                continue;
            }
            $pos = ftell($handle);
            fseek($handle, $pos - strlen($line) - $offset);
            fputs($handle, $line);
            fseek($handle, $pos);
        }
        fflush($handle);
        ftruncate($handle, ($len - $offset));
        flock($handle, LOCK_UN);
        fclose($handle);
    }

    echo $firstline;

    sleep(1); // Sleep 1 second

}