PHP, Shorthand, If..Else using Ternary Operators

Question

Is there a oneliner for this? A nice Ternary OP?

$F_NAME = $_SESSION['USR']['F_NAME'];
if(isset($_POST['F_NAME'])) {$F_NAME = $_POST['F_NAME'];}

Basically "If the POST is sent, show that, even if the post is empty, otherwise grab the value from the session, but only if the post was not set or empty"

Really splitting hairs here...

looking for something like this:

$F_NAME = ? ($F_NAME ? isset($_POST['F_NAME']) : $_SESSION['USR']['F_NAME']);

$F_NAME = (isset($_POST['F_NAME']) ? $_POST['F_NAME'] : $_SESSION['USR']['F_NAME']); — Sunil Pachlangia, Apr 23 '15 at 05:03

score 3 · Accepted Answer · answered Apr 23 '15 at 05:02

3

Its supposed to be:

(conditions) ? true : false
   satisfies <--^      ^----> did not satisfy

So this equates into:

$F_NAME = isset($_POST['F_NAME']) ? $_POST['F_NAME'] : $_SESSION['USR']['F_NAME'];

answered Apr 23 '15 at 05:02

Kevin

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nice. thank you. so it seems: (condition ? true result : false result) – Christian Žagarskas Apr 23 '15 at 05:05
yes, having `?` like the one you have `($F_NAME ? isset($_POST['F_NAME'])` inside the condition is incorrect – Kevin Apr 23 '15 at 05:10
AWESOME. I tossed that into a foreach with the {variable} set option ` foreach ($_SESSION['USR'] as $key => $value) { ${$key} = (isset($_POST[$key]) ? $_POST[$key] : $_SESSION['USR'][$key]); }` – Christian Žagarskas Apr 23 '15 at 05:48
@ChristianŽagarskas yes that should work just fine if you'd like to check for the values if it exist first. glad this helped – Kevin Apr 23 '15 at 05:48

score 1 · Answer 2 · answered Apr 23 '15 at 05:06

1

As Ghost response, or even shorter

$F_NAME = $_POST['F_NAME'] ? : $_SESSION['USR']['F_NAME'];

answered Apr 23 '15 at 05:06

Tom

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thank you! Ghost however is correct, there are 2 conditions I must satisfy, the statement can not default to $_SESSION['USR']['F_NAME'] – Christian Žagarskas Apr 23 '15 at 05:11
But you get the picture on shorthand – Tom Apr 23 '15 at 05:18

PHP, Shorthand, If..Else using Ternary Operators

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