Performance of variable expansion vs. sprintf in PHP

Question

Regarding performance, is there any difference between doing:

$message = \"The request $request has $n errors\";

and

$messa         


        

Answer 1

For Injecting Multiple String variables into a String, the First one will be faster.

$message = "The request $request has $n errors";

And For a single injection, dot(.) concatenation will be faster.

$message = 'The request '.$request.' has 0 errors';

Do the iteration with a billion loop and find the difference.

For eg :