blank php.ini

[rainh]

My server is running well but few days ago when I tried to increase memory limit using php.ini in cent os 7.5 found there is no code in /etc/php.ini! Just nothing but a word 'Usage: CONFIG'! Checked php usage using info.php file and saw servers is running with default php settings but I don't know where from those settings coming. I installed Vesta on this server over a year ago and until now it is running well but php.ini blank, if I try to enter some value from Vesta nothing is saving just blank again. Here is my php.ini screenshot

https://my.pcloud.com/publink/show?code ... Q37jpKDn1V

Is anyone here has this problem? Can anyone give me any clues why this is happening?

Thanks to all