Caching process breaks charset

When cache is cleared or deleted front-end and admin displays well special Croatian characters.
On the second refresh, when the resource is being loaded from the cache, the special characters are lost.
Example:
First load, cache cleared, resource from database: Vinarija Trdeni?
Second load, resource from cache: Vinarija Trdeni --> (? is lost)
(screenshot in attachement)

In the database they are stored well, the collation is good, the charset is utf-8

Other non-modx sites work well on the same system.
Same site works well on local Windows 7 system with apache.

I've filed a bug to tracker: http://tracker.modx.com/issues/7192

System info:
PHP version 5.3.6
Mysql 5.5.13
OS: Solaris, nginx, php-fpm

As you indicated in the tracker ticket, this appears to be an issue with your environment.

Yes, but I don't know where to look for a solution. It is so strange.
Why is reading from database ok, but when reading from cache the problem arises?
If i disable cache the problem still persists.

I've updated php to 5.3.8, no luck.
Normal php code works ok with special characters, maybe the problem is in pdo_mysql? But where?

Update:
In cache generated files - special characters are replaced with "\0". Could that mean something?


[ed. note: mkash23 last edited this post 12 years, 2 months ago.]

Another thing I discovered: Cache file that is generated are ANSI encoded (not UTF-8 ). In other environments that I've tested PHP generates UTF-8 files - so this is the difference and the clue for my problem.

Default charset in php.ini is UTF-8 so I don't know why does it generate ANSI encoded file?

What's the charset in core/config/config.inc.php?


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PLEASE, PLEASE specify the version of MODX you are using . . . PLEASE!
MODX info for everyone: http://bobsguides.com/modx.html

This is database dsn:

I've event try setting $driver_options

But that didn't help either.

Every other php application works ok on that server (magento, phpmyadmin), so i think that the problem is in the PDO because, other applications don't use pdo. [ed. note: mkash23 last edited this post 12 years, 2 months ago.]

And are all the actual collations correct on the actual database container, tables, and columns?

Yes.
Here are the screenshots from phpmyadmin:



In php.ini

In my.cnf


I don't know why the first time the page loads everything is ok on screen. But when creating cache files, special characters are wrong. (Screenshot in tracker)

I've finally found a workaround for my problem:
I've enabled cache_handler=cache.xPDOAPCCache

And the problem for frontend resources is solved.
How can i enable APC for manager?
I can see that mgr, system_settings still get created with xPDOFileCache.

In manager the problem still exists.