php hacks

[Monkuar]

$orderby = (isset($_GET['@amount'])) ? 'amount' : 'date_time';

 

I heard using ? and : is a hack and

 

? stands for a if function ~ and : stands for else?

 

Can u tell me what this is called is there other ways to do this like this?

How can I add more to this code too

$orderby = (isset($_GET['@amount'])) ? 'amount' : 'date_time' :'id';

 

like see If I add the : 'id' to it i get a syntax error, unexpected ':', possible ?thanks phpfreaks!

 

[Mark Baker]

It's called a ternary operator.

 

You can find out more about it in the manual

 

Don't know exactly what you're trying to do here

$orderby = (isset($_GET['@amount'])) ? 'amount' : 'date_time' :'id';

But when you have two colons, by your own logic, this would equate to:

if (isset($_GET['@amount'])) {
   $orderby = 'amount';
} else {
   $orderby = 'date_time'
} else {
   $orderby = 'id';
}

which isn't valid PHP at all

[Monkuar]

It's called a ternary operator.

 

You can find out more about it in the manual

 

Don't know exactly what you're trying to do here

$orderby = (isset($_GET['@amount'])) ? 'amount' : 'date_time' :'id';

But when you have two colons, by your own logic, this would equate to:

if (isset($_GET['@amount'])) {
   $orderby = 'amount';
} else {
   $orderby = 'date_time'
} else {
   $orderby = 'id';
}

which isn't valid PHP at all

 

Would i need to put else if in therE?

[Monkuar]

//monkuar
	if($ibforums->input['screen1'] == "") {
			$std->Error( array( 'LEVEL' => 1, 'MSG' => 'file_screen_empty') );
		}

 

I need to make it only .gif and .jpg extensions are allowed, help ?

 

something with  == " ")

[trq]

Can you at least try to explain your issue? Your last post doesn't seem at all related to your original question.