Can someone access to config.php file ?

[ShinLim]

I think this is a noob question but I still wonder why and is it possible for someone just type in browser and view src/config.php file ?
I tried to access to view it on browser but it went blank, why's that ? I still don't know why, is that because security of system (if so, from what) ?
Can someone please help me answer this ?
Thank you
Can someone access to config.php file ?

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