any difference between if ('1') and if ('true')?

Question

I read a string from a config file:

boolean = true

Although in php $config["boolean"] => String(1) "1"

is there any difference?

Answer 1

Yes difference exists...

In this case

if ('1') and if ('true')

'1' first be converted to true, then executed... But result has been always same...

Of course, exist small speed difference(then need concerted types it's take a little bit more time to do that)... But it's like always - nobody cares :-D

Good to know:

if ( 1 == true) { } // returns true
if ( 1 === true) { } // returns false