PHP Have Lost All Libraries

I have a problem with PHP installed on my Linux server.

PHP 5.2.3 worked fine with JSON, MySQL and other libraries.

But when I:
- installed FFmpeg-PHP module
- added extension=FFmpeg module into php.ini (nothing was changed in php.ini)
- installed PHP-devel with yum
- rebooted server

PHP stopped working with MySQL and JSON. I've added absolute path for mysql.so in php.ini and it works now. But I couldn't find json.so library on my server (with find command).

So, I've downloaded and compiled Json 1.2 and added absolute path to .so in php.ini, but it doesn't work.

FFmpeg-PHP doesn't work also.

I get these errors in php error log file:

Quote:

[20-Nov-2007 03:27:30] PHP Warning: PHP Startup: json: Unable to initialize module
Module compiled with module API=20060613, debug=0, thread-safety=0
PHP compiled with module API=20050922, debug=0, thread-safety=0
These options need to match
in Unknown on line 0
[20-Nov-2007 03:27:30] PHP Warning: PHP Startup: ffmpeg: Unable to initialize module
Module compiled with module API=20060613, debug=0, thread-safety=0
PHP compiled with module API=20050922, debug=0, thread-safety=0
These options need to match
in Unknown on line 0