Question

Im just curious as to what is the difference to these 3 types of strings.

echo "Hello my name is ".$name;

echo "Hello my name is $name";

echo "Hello my name is {$name}";

I know that in the third case its required over the 2nd when your using arrays with keys. For example, i know the following wont work.

echo "Hello my name is $data['name']";

You would need to do…

echo "Hello my name is{$data['name']}";

for it to work.

Does anyone have an explanation as to why this is?

Answer 1

People are giving their opinion, it’s fine, but here are facts :

• Concatenation is faster
• The time gained by concatenating is trivial and not a good argument to justify its use
• In the end, the code does the same thing whatever method you choose

Basically, it does not matter how you do it, just choose your favorite and stick with it. If you work with a group of people, just use the same convention, for clean code’s sakes.