PHP type. Thread Safe or Non Thread Safe?

[itpp2012]

Its not my setup, its a common nginx example how to use a backend like PHP,
this can be RoR, Perl or any other type of backend which has a listening
interface nginx can pass information on to.

Tests has shown that the NTS version is the most reliable/stable to use with
nginx which does not mean TS can't be used.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,248447,248498#msg-248498