How to Convert Boolean to String

Question

I have a Boolean variable which I want to convert to a string:

$res = true; 

I need the converted value to be of the format: "true" "false", not "0" "1"

$converted_res = "true"; $converted_res = "false"; 

I've tried:

$converted_res = string($res); $converted_res = String($res); 

But it tells me that string and String are not recognized functions.
How do I convert this Boolean to a string in the format of "true" or "false" in PHP?

Answer 1

Simplest solution:

$converted_res = $res ? 'true' : 'false';

Answer 2

The function var_export returns a string representation of a variable, so you could do this:

var_export($res, true); 

The second argument tells the function to return the string instead of echoing it.