RE: [PHP] ? : where in the manual? From: Maxim Maletsky (php-general <email protected>)
Date: 07/10/01

same from :

header("Location: ".(empty($SESSION["wantsurl"]) ? $CFG->wwwroot :
$SESSION["wantsurl"]));
Exit;

or, if not readable enough then:

    if(empty($SESSION["wantsurl"])) {
       $goto = $CFG->wwwroot;
    }
    else {
       $goto = $SESSION["wantsurl"];
    }

    header("Location: $goto");

    Exit; // or die;

(condition) ? 'result if true' : 'if false';

is exactly same thing as:

if(condition) {
        'result if true';
}
else {
        'if false';
}

the only difference: it can be only one line (one semilon ';') on any of the
two results and can be only ONE evaluation (no 'elseif') and must have an
'else';

I'll tell you also a few reasons to use this syntax:

1. less lines for PHP to compile.
2. saves you the headache when there are lot's of conditions to do inside
the strings or function returns;
3. less useless variables to declare.

Good question though, where is this documented? I knew it from other
languages... but never came accross it on PHP docs except the code samples..

Sincerely,

 Maxim Maletsky
 Founder, Chief Developer

 PHPBeginner.com (Where PHP Begins)
 maxim <email protected>
 www.phpbeginner.com

-----Original Message-----
From: Rehuel Lobato de Mesquita [mailto:rehuel <email protected>]
Sent: Wednesday, July 11, 2001 1:16 AM
To: php-general <email protected>
Subject: [PHP] ? : where in the manual?

Heya guys,

I am trying to find information in the manual to explain these lines:

$goto = empty($SESSION["wantsurl"]) ? $CFG->wwwroot :
$SESSION["wantsurl"];
    header("Location: $goto");
  die;

Can anyone tell me where to look???

Thanx 

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