ubuntu - XAMPP does not display php errors -

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i have installed xampp on ubuntu. php configured show possible errors, warnings, notices etc, when make error in php code no error displayed.

when copy file other computer (debian native apache, mysql , php set) , open in browser shows 

fatal error: call member function fetch() on non-object in...

as expected, why xampp identical php.ini shows empty page?

another solution

add line in .htaccess file

php_value display_errors on

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