I personally started with Let the Galaxy Burn and the Caiaphas Cain omnibuses. From there I went into Space Marines with the Ultramarines series followed by the Soul Drinkers.

But by far my favorite two have been the Eisenhorn series and the Caiaphas Cain novels.

What is the best place to start Warhammer 40k?
Undefined offset: 1

Hello ...
I am facing a problem that undefined offset :1 in line 3. I can't understand that what type of error it is.
Can anyone tell me that why such error occurs in php

Undefined offset in line : 3

    foreach ($lines as $line)
    {
      list($var,$value) = explode('=', $line); //line 3
      $data[$var] = $value;
    }

