I couldn't find explicit confirmation of this, can it be 0?

  • 2
    Simple answer, no. ID's start @ 1 Oct 8, 2015 at 6:55
  • Why not check the codex?
    – mmcglynn
    Jul 25, 2017 at 14:17

1 Answer 1


No, post ID can not be 0 in the DB. But the value 0 has a special meaning in the code, indicating the currently handled post (if the context is set up correctly)

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