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
– Sunil Pachlangia, Commented Apr 23, 2015 at 5:03

Kevin · Accepted Answer · 2015-04-23 05:02:58Z

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, 2015 at 5:02

Kevin

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4 Comments

Christian Žagarskas Over a year ago

nice. thank you. so it seems: (condition ? true result : false result)

Kevin Over a year ago

yes, having ? like the one you have ($F_NAME ? isset($_POST['F_NAME']) inside the condition is incorrect

Christian Žagarskas Over a year ago

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]); }`

Kevin Over a year ago

@ChristianŽagarskas yes that should work just fine if you'd like to check for the values if it exist first. glad this helped

Tom · Accepted Answer · 2015-04-23 05:06:47Z

1

As Ghost response, or even shorter

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

answered Apr 23, 2015 at 5:06

Tom

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2 Comments

Christian Žagarskas Over a year ago

thank you! Ghost however is correct, there are 2 conditions I must satisfy, the statement can not default to $_SESSION['USR']['F_NAME']

Tom Over a year ago

But you get the picture on shorthand

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