PHP, MySQL and Apache are installed under Linux, but PHP is not able to manipulate MySQL.

PHP, MySQL, and Apache are installed under Linux, but what if PHP can't operate MySQL?
I tried, MySQL can be used, PHP can also be used. But phpMyAdmin unable to enter, wrote a PHP file himself to test a bit also not. The PHP in Linux did not find the php.ini in Windows, which file should be set in? Is the Setup method the same as Windows?

------Solution--------------------
Explore
PHP.ini generally within the/usr/local/php/lib/or/etc/php5/
or enter locate PHP.ini
Look for yourself.

I remember phpmyadmin do not need to set php.ini AH.

------Solution--------------------
Take a look at the php-loaded extension mysql.so mysqli.so, etc., and see how it is used under Linux lsof | grep MySQL, if any, indicates that the extension is loaded, and there is no need to check the configuration. Windows can process exlorer, find apache2 processes, and then look inside the loaded DLLs and. So.

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