[SOLVED] Optimized if?!!!!

[zignaltrack]

i have a piece of code in front of me that i need to work with and it, to me, looks like a optimised if statement.. bt m new to php n it doesnt make sense to me.. was hopin if anyone could just tell me what does this line mean?

 

the define statements are

define('ROLE_ANONYMOUS', 1);

define('ROLE_REGISTERED', 2 | ROLE_ANONYMOUS);

define('ROLE_PUBLISHER', 2 | ROLE_REGISTERED);

define('ROLE_ADMIN', 4 | ROLE_PUBLISHER);

 

and the line i was hoping anyone could help me understand is..

 

$this->role = ($this->admin == 1)? ROLE_ADMIN : ROLE_REGISTERED;

 

 

anyone plz?

[jake2891]

All this line means is that if admin ==1 then use roll admin else use role_registered

 

its the same as

if(admin==1){

      roleadmin

}else{

role_registered

}

 

does that help?

 

$this->role = ($this->admin == 1)? ROLE_ADMIN : ROLE_REGISTERED;

 

 

[soycharliente]

It's called a ternary operator.

 

http://www.google.com/search?q=php+ternary+operator

 

if ($this->admin == 1) {
   role = ROLE_ADMIN;
} else {
   role = ROLE_REGISTERED;
}

[zignaltrack]

yep very much.. thanks all..

 

i had to have that info cos there are places or functions that made me want to confirm this.. for e.g

 

    function setAdmin($isAdmin) {

        $this->admin = $isAdmin? 1 : 0;

        if ($this->admin == 1) {

            $this->role = ROLE_ADMIN;

        }

    }

 

this is to set the admin, cos admin is a field in the user table that can have a value of 0/1 stating notanadmin/isanadmin... what i dnt understand the need for the line $this->admin = $isAdmin? 1 : 0;?? what is this line trying to achive?!