This ML is intended for nginx-related problems. Yours is PHP-related.

Either ask this question on some PHP ML or
RTFM<http://www.php.net/manual/en/faq.obtaining.php#faq.obtaining.threadsafety>
....

With regards,
---
*B. R.*
_______________________________________________
nginx mailing list
nginx@nginx.org
http://mailman.nginx.org/mailman/listinfo/nginx