Problem with phpmyadmin

[mahesh]

I tried to install phpmyadmin with the command
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sudo apt update && sudo apt install phpmyadmin php-mbstring
, first I got an error Could not get lock / var / lib / dpkg / lock then I typed the command in the terminal
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sudo dpkg --configure -a
in terminal.
After that, the installation was somehow completed, but now when I type 127.0.0.1/phpmyadmin in chrome, it won't open that login window, but will show me the php code.
How do I handle this?