[SOLVED] Help With Interpreting Alternate Syntax for If/Else Statement

[limitphp]

I think this is an if/else statement:

<?php
$currentpage = is_numeric($_GET['currentpage']) ? (int) $_GET['currentpage'] : 1;

 

Can someone help break it down so I can understand how the if/else statement is constructed?

 

Thanks...

[448191]

If the value is a numeric string, cast it to an integer. Otherwise use 1. Assign the result to $currentpage.

[.josh]

It's a ternary operator. 

 

(condition)? true : false

 

Same as saying

 

if(is_numeric($_GET['currentpage'])) {
  $currentpage = (int) $_GET['currentpage'];
} else {
  $currentpage = 1;
}

[limitphp]

 

 

thanks guys.

[limitphp]

can you have only two parts:

 

condition ? if true

 

and not have the : if not true;

 

 

[premiso]

can you have only two parts:

 

condition ? if true

 

and not have the : if not true;

 

You can try, not sure if that is kosher, but give it a try, you can't really hurt anything by trying.

 

Edit: Nope you cannot, syntax error.