PHP sprintf escaping %

Question

I want the following output:-

About to deduct 50% of € 27.59 from your Top-Up account.

when I do something like this:-

Answer 1

It is very easy.

Put another % in front of the original % to escape it.

For example,

$num=23;
printf("%%d of 23 = %d",$num);

Output:

%d of 23 = 23