How can I write an if statement if one value is null?

[chrisburton]

Code:

if(isset($trakt->movie->title)) {
$title = $trakt->movie->title;
} elseif(isset($trakt->show->title)) {
$title = $trakt->show->title;
} else {
$title = “None”;
}

How could I write it to something like this:

If `$trakt->movie->title` or `$trakt->show->title` isset(), $title = $result?

[chrisburton]

I think I might need to use `empty()` instead of `isset()`

[chrisburton]

Thanks for the resource, @BenWalker

@CrocoDillon Any documentation on `?:`. Can’t seem to find it.

[srikarg]

It’s the ternary operator @chrisburton.

http://davidwalsh.name/php-shorthand-if-else-ternary-operators

Also @CrocoDillon, shouldn’t it be $title = $trakt->movie->title ? $trakt->movie->title : $trakt->show->title ? $trakt->show->title : "None"; Not sure if that’s right though. I never saw the operator with the ? and the : right next to eachother.

[srikarg]

Oh, ok then @CrocoDillon. Thanks for the tip!

[chrisburton]

Now I’m confused.

I can just do this?:

$title = $trakt->movie->title ? $trakt->show->title : “None”;

[chrisburton]

Ok, then it appears that’s not what I’m looking for.

If `$trakt->movie->title` evaluates to a string and `$trakt->show->title` is empty, the `$title` should equal `$trakt->movie->title`, not `$trakt->show->title` and vice versa.

####Simplified:

if $trakt->movie->title` returns a string and `$trakt->show->title` is empty

$title = `$trakt->movie->title`

if $trakt->movie->title` is empty but `$trakt->show->title` returns a string

$title = `$trakt->show->title`

[chrisburton]

@CrocoDillon I’m grabbing the last value in an array. So there will either be a `movie->title` or `show-title`. There can’t be both and neither one can be empty. One of them will return with a title string.

I’m trying to simplify an if/elseif.

####Current code:

$trakt = $data->activity[0];

if(empty($trakt->movie->title)) {
$title = $trakt->movie->title;
} elseif(empty($trakt->show->title)) {
$title = $trakt->show->title;
} else {
$title = “None”;
}

Basically do this (if it was valid):

Let’s say the last thing I watched was a `movie`.

IF $trakt->movie->title OR $trakt->show->title is empty then, $title = whichever isn’t empty

The result would be the value of `$trakt->movie->title` since I watched a `movie` last. Not a `show`.

[chrisburton]

@CrocoDillon It worked when the last thing I watched was a movie however, if the last thing I watched was a show, I get this:

Notice: Undefined property: stdClass::$movie in trakt.php on line 10

10. if($trakt->movie) {
11. $title = $trakt->movie->title;
12. } elseif($trakt->show) {
13. $title = $trakt->show->title;
14. } else {
15. $title = “None”;
16. }

[chrisburton]

@traq THAT WORKED!

…doing some testing to make sure.

[chrisburton]

Thanks @CrocoDillon, @traq, @BenWalker and @srig99.

Solution (by @traq):

$title = @$trakt->movie->title
or $title = @$trakt->show->title
or $title = “None”;

[chrisburton]

@BenWalker I still like to thank those who contribute their time.

[jurotek]

@traq, Hey buddy, the ? and none is comparable to sql or and null criteria?

[jurotek]

I have a good knowledge of DB Dev, as you prolly know, doing it for over 10 years (Access, MySql and SQL Server) but I am lately getting intrigued with PHP and how it works in conjunction with DB. Is it like a scripting language to retrieve attribute values from predefined Transact query and place it in html? Or can you actually query tbl with it?

[jurotek]

@traq, Thanx, I was just thinking lately that I should start learning PHP. I know it will come handy. Thanx again.

[Author]

Posts