Why are we putting dots there ?

Question

echo "name is " .$name.
//Why are there dots before and after $name?

Answer 1

php uses dots to concatenate strings so:

echo "name is " . $name; => echo "name is $name";

and the dot after $name is meaningless and will raise an error (it should be ; not .)

Note: dots should only be used before variables\strings not after them