$ sudo apt-get update
$ sudo apt-get install php-tokenreflection 

php-tokenreflection is installed in your system.

Make ensure the php-tokenreflection package were installed using the commands given below,

$ sudo dpkg-query -l | grep php-tokenreflection *

You will get with php-tokenreflection package name, version, architecture and description in a table

php-tokenreflection package basic information: