PHP Attributes 50 Minute Tutorial

Dive into PHP attributes as we use them to implement validation rules in a DTO, showcasing a practical and efficient coding approach.
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0:00 Introduction
3:50 Data Transfer Objects
10:05 Readonly Properties and Classes
14:18 Creating Custom Attributes
15:57 Applying Attributes
17:40 Validation Mechanism
26:08 Attributes and Interfaces
34:13 Instantiating Attributes
40:18 Custom Validator Classes
45:40 Get the full course

[@salimibrohimi9813]

I can't believe that the duration of this video is 50 minutes. I didn't pause or skip a bit of this video. 50 minutes felt like 5 minutes. You're a good educator!

[@GaryClarkeTech]

Thanks a lot..appreciate the kind words...hope I didn't make you late for anything!

[@CodefyPHP]

Thanks, Gary for taking the time to explain attributes. This tutorial is simple to follow for all levels of PHP developers.

[@GaryClarkeTech]

You're very welcome!

[@davidmutua6971]

You Sound like Simon Allardice from Pluralsight. This is exactly what I wanted to learn. Also I was following the PHP docs. Today have learned how to read them properly too. By clicking the returned type then reach for it's properties. Thanks Clarke

[@GaryClarkeTech]

Glad it was helpful!

[@theman7050]

You are a legend for any Wordpress/PHP developer. Thank you so much :D

[@GaryClarkeTech]

You're welcome...thanks for watching!

[@michaelhitzler8085]

One of the best PHP tutorials I have seen so far. Very well explained!

[@GaryClarkeTech]

Thanks for watching...I appreciate the kind words!

[@mohammadabughrara6319]

After searching for hours in multiple places for tutorials, blogs.. that explain the php attributes, you were the only one who actually explained how it works. Thanks.

[@GaryClarkeTech]

You're welcome. Glad I could help!

[@OmarAli-gm5lx]

Full explanation is in the PHP docs also..

[@andreiramboiu5184]

Hi Gary, I just wanted to express my appreciation for your tutorials. Your explanations are clear and easy to follow, which has greatly helped me. Keep up the fantastic work!

[@GaryClarkeTech]

Cheers Andrei..I appreciate the kind words. Keep going 🦾

[@AKcomedyshorts1507]

This very specific and visibly clear way of explaining attributes and how thing works in oop way. really appreciate this work. 👏 👏 👏 For garry

[@GaryClarkeTech]

Thanks a lot...appreciate the kind words

[@tonyto2009]

Underrated channel - Thanks Gary for the great content you provide.

[@GaryClarkeTech]

Much appreciated

[@user-ys3uu5un6l]

Garry! Thank you! It is cool!

[@hanzai_keisu]

Another great video from you. Thanks for this video though i'm gonna watch it later. I'm very grateful from your php oop course video (i watched your 2 & 3 hour videos), now i understand the oop concept completely.

[@GaryClarkeTech]

Excellent..keep going my friend 💪

[@rezalaal]

Very useful - Thank you

[@GaryClarkeTech]

Glad to hear that!

[@ukasz8561]

Thanks for your work, you are my guru in PHP

[@GaryClarkeTech]

Happy to hear that!

[@DaviMartins99]

That was super neat!

[@GaryClarkeTech]

Glad you think so!

[@millennia]

Wow great! Just what I wanted.

[@GaryClarkeTech]

Enjoy!

[@TioJobs]

Hey Gary! I really liked this video! Is the continuation in the paid course?

[@GaryClarkeTech]

Thanks for watching. Yes..the paid course includes the continuation. I'm adding new stuff to the full courses all the time.

[@ashrafbeshtawi3556]

I have always wondered how the Attributes get validated in Symfony, and was a such black box to me. Thanks

[@GaryClarkeTech]

Glad I could help!

[@DaviMartins99]

Same, man!

[@a.karamat2168]

Great & Great ❤❤ just I was thinking if it could be more straight forward by just having a validate method inside the Rule class itself instead of getValidator() and then call another class to do the validation. I mean the rule should define the validation logic itself and other wise it might not be actually a Required Rule !?

[@GaryClarkeTech]

Thanks...no keep the logic separate. Define and validate the rule separately. Attributes shouldn't contain a lot of logic.

[@GuidoAlvarez-fm9hg]

At 32:52 - When INSTANCE_OF return value 2 does it mean the validation is true?

[@theman7050]

Im having trouble finding your video where you creared the ReflectionClass. Could you please help me finding that video?

[@GaryClarkeTech]

ReflectionClass is built into PHP. You don't need to create it.

[@theman7050]

​​@@GaryClarkeTechohhhhh thank you so much. And have you explained it in a video?

[@GaryClarkeTech]

Not on KZbin I don't think but I teach it in the full OOP course www.garyclarke.tech/p/learn-object-oriented-php

[@moofymoo]

wait, php people used to parse comments in production? are they crazy, or just trolls?

[@nerjuz]

Why you don't use mixed for type hints?

[@GaryClarkeTech]

I don't see the point of mixed as a type hint tbh...seems quite meaningless

[@nerjuz]

@@GaryClarkeTech in my opinion to do it, it's better because you can find all points with mixed declaration for later refactor and to pass PhpStan check.

[@Dev-sf3pz]

Does anyone else have trouble keeping track mentally of all the different ways to make and control classes? Seems almost impossible.

[@GaryClarkeTech]

That's normal when you are starting out...everyone experiences the same thing. It gets easier, trust me!

[@NedumEze]

Please how can we use Attributes to protect say, database credentials used to define a PDO connection. Exceptions thrown even within a try/catch, would reveal sensitive information!

[@GaryClarkeTech]

Use the SensitiveParameter attribute: www.php.net/manual/en/class.sensitiveparameter.php

[@NedumEze]

@@GaryClarkeTech Maybe, Gary, you can illustrate how. Because, I followed the link you gave us. It seems that the Sensitive Parameter Attribute is to be used in the function/method definition NOT when Calling the function/method. Should I extend the PDO Class and override the Constructor's handling of the Password, etc?

[@GaryClarkeTech]

No..I wouldn't extend PDO, create your own Connection class which has PDO as a dependency. Then you can mark params on that class as sensitive and throw your own custom exceptions from that class if / when PDO exceptions are thrown and caught.

[@NedumEze]

@@GaryClarkeTech Thanks Gary. I will give it a whirl. Struggling mentally to figure out how this will work.

[@GaryClarkeTech]

The way I figure stuff like this out is to start simple. So just create simple class with one method and a couple of parameters and add the SensitiveParameter attribute to it to get a feel for it. Then take what you know and apply it to your own code. Here's a very simple Connection class which I created for the Test Driven PHP course: github.com/GaryClarke/pest-tdd/blob/main/src/Database/Connection.php

[@LaravelJutsu]

Well done, mate! Impressive stuff you provide here!

[@GaryClarkeTech]

Thanks a lot my awesome friend!