PHP Null Coalescing Operators: Do You Use Them?

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A quick video about the PHP syntax which I don't see used enough in the wild.

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I've been using the null collalesce operator lately because it's so much easier to write.

I really like that assignment one! Wasn't aware of that one. I'll have to give it a try. As soon as you described how it worked, defaults for config popped right into my mind.

Could also be used for default values to insert into a database for a legacy database, or if you simply do not prefer to let the database layer define the default value

JouvaMoufette

Nice one! I completely forgot about this one. I'm also a fan of using ?: operator

cardboarddignity

I have been a fan of NULL COALESCING operator and using it as I heard of it as alternative of isset. 😝

nabeelyousafpasha

I found this has come in quite handy actually. :) Thanks for sharing!!

Jason-wvit

Awesome thanks, please more of that shorthand syntax

AMoktar

Very nice! i realy like your videos, can you talk more about queues e.g RabbitMQ?

TheMarcelitto

Hi Povilas, thank you for this quick review of new(ish) operators. Did you mean to say "PHP 7.4 and PHP 8" (about 10 seconds into the video)?

brucepeterkin

I use them constantly since they were released

HadToChangeMyName_YoutubeSucks

Hey I saw in some videos that you read some GIT repositories and qualify if it would be senior code etc etc. do you still do it? I would like sent to you on of mine. I've been working with PHP for 14 years and Laravel 4 years

williamrox

Is this works with array undefined elements?

Deleterus

Be carful of using it, It works well with null values not with falsy values.

For example: $key = '' ?? 'default'; is going to be an empty string.

MohamedAbdallah-ltwc

I have a question I would like to ask you to answer.
In my autoload_classmap.php file, it is generated by composer,
with this line:
=> $baseDir .
- I want to ask why it's not like this:
=> $baseDir . '/app/Http/Controllers/FrontController.php',

- I tried running composer dump-autoload but it still hasn't changed
Please explain and correct instructions from the teacher
thanks alot!

hoanxuanmai

I love them for cached getters;
protected ?array $someValue = null;
public function getSomeValue() {
return $this->someValue ??= $this->expensiveOperation();
}

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