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Subject: Fixing a bug : a personal report
From: francois.gannaz@gmail.com (=?ISO-8859-1?B?RnJhbudvaXM=?= Gannaz)

Hi

I wrote a report of my first dive into php-src in an attempt to fix a bug.
  https://github.com/mytskine/php-src/wiki/bug40531-mbsubstr
I tried to detail everything as a personal memo, then for a friend of mine,
and now I've put it into a github wiki page.

I wonder if it can be useful to anyone. If you have the time to read it, I'm
very interested in any comments, especially on the technical parts (integer=
s,
null values and zval). Please don't be to harsh if I misunderstood somethin=
g.

Regards
--
Fran=E7ois Gannaz