(I also looked at the online manual, dated 27-01-2002.)

The php.ini-file parameter "post_max_size" is not documented in the "I.3. Configuration" section of the manual.  To include a copy of the text in php.ini would be a start.  It would be nice with a pointer to it from the "upload_max_filesize" parameter too though, since the "post_max_size" parameter effects upload size too, ie. it have to be at least as big as the "upload_max_filesize" as the accompanying MIME headers also takes some space.

The parameter is also not mentioned in the section "III.19. Handling file uploads", where it ought to be mentioned, at least in the "Common Pitfalls" subsection, where "upload_max_filesize" is mentioned.

    Affi