PHP question mark

Question

$hideCode = $likesObj->isAlreadyLikedByUser(facebookUID()) ? \'style=\"display:none;\"\' : \'\';

Can anyone explain to me what that question mar

Answer 1

It's a shorter version of a IF statement.

$hideCode = $likesObj->isAlreadyLikedByUser(facebookUID()) ? ' style="display:none;"':'';

if in fact :

if($likesObj->isAlreadyLikedByUser(facebookUID()))
{
   $hideCode = 'style="display:none"';
}
else
{
 $hideCode = "";
}

For the purism :

It's representing a Ternary operation