So Wednesday I started my new job as a php developer. It’s been way awesome so far. One of the neat things I learned is the tertiary statement/operator which looks something like this ((condition_to_test)?if_true_do_this:if_false_do_this);. Here’s an example:
((isset($_POST[something]))?yes:no);
If the the above statement is true then it returns a yes, otherwise it returns a no. Can’t really think of a good example for it, but it works kind of like an IF statement, especially when you just need to test something boolean-like style.
lots of good uses,basically just shortens the if/else stmt…
$msg = ($userId != “” ? “Welcome $userName” : “put login link here”);
Just sets your welcome msg to their user name if they are logged, and would display a link to the login page if not logged in.
’secret123′,
‘matt’ => ‘passw3rd’,
‘john’ => ‘rainbow33&^’
);
$user = ‘daws’;
$pass = ’secret123′;
$loggedIn = array_key_exists($user, $userTable) && $userTable[$user] == $pass;
echo $loggedIn ? “You are logged in as $user!” : “You have provided and invalid user/pass combo.”;
?>
The previous post had php tags, which your server didn’t like.
Here is the code:
// Checks user/pass combo against hash table
$userTable = array(
‘daws’ => ’secret123′,
‘matt’ => ‘passw3rd’,
‘john’ => ‘rainbow33&^’
);
$user = ‘daws’;
$pass = ’secret123′;
$loggedIn = array_key_exists($user, $userTable) && $userTable[$user] == $pass;
echo $loggedIn ? “You are logged in as $user!” : “You have provided and invalid user/pass combo.”;
Another great use for this is inside an echo. For instance:
echo ‘Hello, ‘.(($_SESSION[user]==”)?’you are not logged in, please login to view this content.’:$_SESSION[user].’, thank your for logging in today’);
Thats free hand code, but you get the idea.