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Showing 11 to 15 of 18 blog articles.
5835 views · 2 years ago
A Beginners Guide To Artificial Intelligence For Web Developers

Artificial Intelligence has significantly transformed the way we work and interpret information. With technologies such as OCR, machine learning, deep learning, natural language processing, and computer vision; machines are now able to provide greater insights and perform tasks that typically required hours and hours of work from humans.

What is artificial intelligence?


A.I. or artificial intelligence is the technology that enables machines to perform tasks that usually require human intelligence. But instead of using human brains, A.I. uses different technologies such as computers, or even software algorithms, to perform tasks. Some of the most common A.I. technologies include speech recognition, voice recognition, machine translation, natural language processing, computer vision, and predictive analytics. The term artificial intelligence comes from the combination of artificial and intelligence. While artificial intelligence is a property of the physical world, intelligence is the property of the mind. How does it make sense in Web Development? As mentioned earlier, A.I. has significantly transformed the way we work and interpret information.

How is AI applied to web development?


In the majority of cases, AI is used to assist a developer in a number of functions: Automatically format existing content, analyze images for semantic meaning Break down complex tasks into smaller pieces Example applications of AI in web development Example image compression algorithms. Tools such as image recognition and machine learning have been key factors in the development of new image processing algorithms. Traditionally, manually processing an image was a lengthy and tedious process, but when computer vision was introduced into the process it drastically decreased the amount of time required to complete this task. Now, programs such as image recognition can identify objects in images and classify them based on both visual and metadata attributes.

Machine learning


When data is fed into a machine learning algorithm, the machine learns to understand it. For instance, if you provide a machine learning algorithm examples of dogs verses blueberries, the machine will learn to identify what a picture of a blueberry looks like, verses a picture of a dog. Natural Language Processing Natural language processing is a sub-field of machine learning. You can apply natural language processing for reading emails, chatting, or writing blog posts (such as this one!). A good example of natural language processing in action can be found in Microsoft's Cortana. Deep learning This is the most popular type of artificial intelligence today.

Deep learning


Deep learning algorithms are very similar to how the human brain works, with its built in mechanisms to learn and memorise a vast amount of information. It's these connections that enable machines to be able to recognise patterns and learn from them. An example of this is Google Translate, which recognises more than a 1,000 languages. This isn't an example of AI but it shows how useful these programs can be. Deep learning is one of the hottest technologies in the field of machine learning and this explains why almost all of the major technology companies are pushing these advances forward.

Natural language processing


For example, your phone can understand you better when you speak to it. If you say “Hey, Siri,” your phone will listen to you and respond to your questions. In general, it means that the system has been trained and is able to better understand the context of what you’re trying to communicate. This type of Natural Language Processing is used in the majority of companies today, including the likes of Google and Apple, to improve the user experience, provide better customer service, and to aid in the effective execution of processes. Machine learning Machine Learning is an extremely powerful technique used to further improve the knowledge of artificial intelligence, as well as to make machines smarter by discovering patterns and generalities in vast amounts of data.

Computer vision


Computer vision is a technology that has been able to recognize objects in images and video for eons. A popular example is Apple's Siri, which was one of the first software to use computer vision to provide contextual awareness. AI is built on this technology, providing the capability to recognize various images and videos. The industry is still in its infancy, but what we have seen so far has been incredibly incredible. What's amazing is that just a few years ago we thought that vision was completely under our control, but now, it has evolved to understand the nuances of objects.

Conclusion

“In the year 2050, the Amazon book you ordered for your Kindle will be delivered by a drone.”

This futuristic statement by Amazon CEO Jeff Bezos did leave you pondering. But it is one thing to dream about the future and another thing to think about the innovations taking place in the present and how you can exploit them to drive better business results. To make the most of the technologies coming to our everyday lives, we must acquire a knowledge of the AI technology, its features, and its application. Succeeding in today’s competitive and challenging business world, requires a broad set of skills such as coding, business analysis, computer programming, and ecommerce marketing.

Learn more about AI with our video library
19333 views · 5 years ago
How to install PHPUnit

PHPUnit is an essential tool for every PHP developers. It is one of those tools that every PHP developer should have installed in their development environment. The problems most first time PHPUnit developers run into are where to install it and how to install it. This quick guide will walk you through the process and answer both questions.

How do I install PHPUnit

The Easy Way

In your project’s root directory use this command.

composer require --dev phpunit/phpunit ^6.0


This command adds PHPUnit to your project as a development dependency. This is the absolute best way to install PHPUnit. It is the best way because this way the version of PHPUnit does not change unless you change it. We specified ^6.0 as the version which means we’ll get all the updates to the 6.0 branch but not 6.1. While BC breaks don’t happen often in PHPUnit, they have happened. If you have a globally installed version of PHPUnit and you upgrade it to a version that breaks BC, you have to go update all of your tests immediately. This is a lot of hassle if you have a lot of projects with a lot of tests. Keeping a copy of PHPUnit installed as a dev requirement in each project means that each project has its own copy that can be upgraded as necessary.

The Hard Way

In a command prompt regardless of where you are in your file system, use this command.

composer global require phpunit/phpunit ^6.0


On MacOS and Linux machines, this will install PHPUnit in ~/.composer/vendor/bin. If you add this directory to your path, then from any project, you can execute PHPUnit. However, as noted above, if you ever upgrade your globally installed packages then you will have problems.

composer global update


Run that when there is a new version of PHPUnit, it will be installed, regardless of whether this will break your existing unit tests on one or more of your projects. Windows users will need to locate the .composer/vendor/bin directory in your user’s home directory.

The “ZOMG why would you do it this way” Way

Here is the old-school use wget and move it into the correct position manually. You can do it this way, but you will have to take care of all upgrades manually as well. If you only have a single project on the computer and you never ever plan on changing the version of PHPUnit….nope, still better to usecomposer require --dev.

wget https://phar.phpunit.de/phpunit-6.0.phar


chmod +x phpunit-6.0.phar


sudo mv phpunit-6.0.phar /usr/local/bin/phpunit


phpunit --version


These instructions are of course for MacOS or Linux. Windows user won’t need to do chmod or sudo but will need a BAT file.

That’s it. One of those commands should get you a working copy of PHPUnit on your computer.

Resources:

* Installing PHPUnit
* Composer Introduction (For the Global option)
12911 views · 4 years ago
Why Cloudways is the Perfect Managed Hosting for PHP Applications

The following is a sponsored blogpost by Cloudways


Developing an application is not the sole thing you should bank on. You must strive to find the best hosting solution to deploy that application also. The application’s speed is dependent on the hosting provider, that is why I always advise you to go for the best hosting solution to get the ultimate app performance.

Now a days, it is a big challenge to choose any web hosting, as each hosting has its own pros and cons which you must know, before considering it finally for the deployment. I don’t recommend shared hosting for PHP/Laravel based applications, because you always get lot of server hassles like downtime, hacking, 500 errors, lousy support and other problems that are part and parcel of shared hosting.

For PHP applications, you must focus on more technical aspects like caching, configs, databases, etc. because these are essential performance points for any vanilla or framework-based PHP application. Additionally, if the app focuses on user engagement (for instance, ecommerce store), the hosting solution should be robust enough to handle spikes in traffic.

Here, I would like to introduce Cloudways PHP server hosting to you which provides easy, developer and designer friendly managed hosting platform. With Cloudways, you don't need to focus on PHP hosting, but must focus on building your application. You can easily launch cloud servers on five providers including DigitalOcean, Linode, Vultr, AWS and GCE.


Cloudways ThunderStack


Being a developer, you must be familiar with the concept of stack - an arrangement of technologies that form the underlying hosting solution.

To provide a blazing fast speed and a glitch-free performance, Cloudways has built a PHP stack, known as ThunderStack. This stack consists of technologies that offer maximum uptime and page load speed to all PHP applications. Check out the following visual representation of ThunderStack and the constituent technologies:


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As you can see, ThunderStack comprises of a mix of static and dynamic caches with two web servers, Nginx and Apache. This combination ensures the ultimate experience for the users and visitors of your application.


Frameworks and CMS


The strength and popularity of PHP lies in the variety of frameworks and CMS it offers to the developers. Realizing this diversity, Cloudways offers a hassle-free installation of major PHP frameworks including Symfony, Laravel, CakePHP, Zend, and Codeigniter. Similarly, popular CMS such as WordPress, Bolt, Craft, October, Couch, and Coaster CMS - you can install these with the 1-click option. The best part is that if you have a framework or CMS that is not on the list, you can easily install it through Composer.


1-Click PHP Server & Application Installation


Setting up a stack on an unmanaged VPS could take an entire day!

When you opt for Cloudways managed cloud hosting, the entire process of setting up the server, installation of core PHP files and then the setup of the required framework is over in a matter of minutes.

Just sign up at Cloudways, choose your desired cloud provider, and select the PHP stack application.


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As you can see, your LAMP stack is ready for business in minutes.

Many PHP applications fail because essential services are either turned off or not set up properly. Cloudways offers a centralized location where you can view and set the status of all essential services such as:



* Apache
* Elasticsearch
* Memcached
* MySQL
* PHP-FPM
* Nginx
* New Relic
* Redis
* Varnish


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Similarly, you can manage SMTP add-ons without any fuss.


Staging Environment


With Cloudways, you can test your web applications for possible bugs and errors before taking it live.

Using the staging feature, developers can first deploy their web sites on test domains where they can analyze the applications performance and potential problems. This helps site administrators to fix those issues timely and view the application performance in real-time.

A default sub domain comes pre-installed with the newly launched application, making it easy for the administrators to test the applications on those testing subdomains. Overall, it's a great feature which helps developers know about the possible errors that may arise during the live deployment.

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Pre-Installed Composer & Git


PHP development requires working with external libraries and packages. Suppose you are working with Laravel and you need to install an external package. Since Composer has become the standard way of installing packages, it comes preinstalled on the Cloudways platform. Just launch the application and start using Composer in your project.

Similarly, if you are familiar with Git and maintain your project on GitHub or BitBucket, you don’t need to worry about Git installation. Git also comes pre-configured on Cloudways. You can start running commands right after application launch.


Cloudways MySQL Manager


When you work with databases in PHP, you need a database manager. On the Cloudways platform, you will get a custom-built MySQL manager, in which you can perform all the tasks of a typical DB manager.

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However, if you wish to install and use another database manager like PHPMyAdmin, you can install it by following this simple guide on installing PHPMyadmin.


Server & Application Level SSH


If you use Linux, you typically use SSH for accessing the server(s) and individual applications. A third-party developer requires application and server level access as per the requirements of the client. Cloudways offers SSH access to fit the requirements of the client and users.

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PHP-FPM, Varnish & Cron Settings


Cloudways provides custom UI panel to set and maintain PHP-FPM and Varnish settings. Although the default configuration is already in place, you can easily change all the settings to suit your own, particular development related requirements. In Varnish settings, you can define URL that you want to exclude from caching. You can also set permissions in this panel.

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Cron job is a very commonly used component of PHP application development process. On Cloudways platform, you can easily set up Cron jobs in just a few clicks. Just declare the PHP script URL and the time when the script will run.

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Cloudways API & Personal Assistant Bot


Cloudways provides an internal API that offers all important aspects of the server and application management. Through Cloudways API, you can easily develop, integrate, automate, and manage your servers and web apps on Cloudways Platform using the RESTful API. Check out some of the use cases developed using Cloudways API. You just need your API key and email for authentication of the HTTP calls on API Playground and custom applications.

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Cloudways employs a smart assistant named CloudwaysBot to notify all users about server and application level issues. CloudwaysBot sends the notifications on pre-approved channels including email, Slack and popular task management tools such as Asana and Trello.


Run Your APIs on PHP Stack


Do you have your own API which you want to run on the PHP stack? No problem, because you can do that, too with Cloudways! You can also use REST API like Slim, Silex, Lumen, and others. You can use APIs to speed up performance and require fast servers with lots of resources. So, if you think that your API response time is getting slower due to the large number of requests, you can easily scale your server(s) with a click to address the situation.


Team Collaboration


When you work on a large number of applications with multiple developers, you need to assign them on any specific application. Cloudways provides an awesome feature of team collaboration through which you can assign developers to specific application and give access to them. You can use this tool to assign one developer to multiple applications. Through team feature, you can connect the team together and work on single platform. Access can be of different type; i.e. billing, support and console. You can either give the full access or a limited one by selecting the features in Team tab.

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Final Words


Managed cloud hosting ensures that you are not bothered by any hosting or server related issues. For practical purposes, this means that developers can concentrate on writing awesome code without worrying about underlying infrastructure and hosting related issues. Do sign up and check out Cloudways for the best and the most cost-effective cloud hosting solution for your next PHP project!
9668 views · 5 years ago
Conferences are always looking for speakers - it can be hard to keep track of them all and the requirements they have. I wanted to put together this quick guide to make it easy for you to apply. Make sure to apply because as Wayne Gretzky said “You miss 100% of the shots you don’t take”!!!

phpDay 2019

First we have phpDay 2019 which will take place on May 10 & 11 at Hotel San Marco in Verona, Italy. Some facts about this call for papers:
*Submission deadline: February 4, 2019
*Submit via: https://cfp.phpday.it/
* For more info on the conference: https://2019.phpday.it/
* Twitter: (@phpday)
* Speaker package includes: Full conference pass (jsDay + phpDay), speaker dinner the first night, lunch, reception and activities included in regular conference.
* For speakers remote to the Area: A refund of up to €200 for travel costs (or €500 from US or extra-EU), 2 complimentary hotel nights (+1 hotel night for speakers presenting multiple talks or US/extra-EU) and Taxi fare from/to the airport.
*In Submission: make sure your talk title and abstract define the exact topic you want to talk about and what you hope people will learn from the session.
*Talk Ideas: APIs (REST, SOAP, etc.), Architectures, Continuous Delivery, Databases, Development, Devops, Frameworks, Internals, PHP 7.x / PHP 8, Security, Testing and UI/UX.

ScotlandPHP

Next we have ScotlandPHP which will take place on November 8 & 9 at Edinburgh International Conference Centre in Edinburgh, Scotland.
*Submission deadline: April 22, 2019
*Submit via: https://cfs.scotlandphp.co.uk/
* For more info on the conference: https://conference.scotlandphp.co.uk/
* Twitter: (@scotlandphp)
* Speaker package: Full conference pass, lunch, receptions and activities included in regular conference.
* For speakers remote to the Area: Complimentary airfare/travel, 2 complimentary hotel nights and we'll pick you up and drop you off to/from the airport so you don't have to worry about it.
* Speakers will be provided with a projector, a wireless lapel microphone and a screen for their presentation (size depends on the room). Speakers should bring any equipment they need to connect to projectors (VGA). It is also suggested that you reduce your dependency on the in-house internet connection as possible. We will however provide HDMI and Mini Display Port connections for all speakers on request. If you need something different or your selected talk needs audio equipment just let us know. We'll work it out.
* Looking for talks and workshops (November 8th).
*Talk Ideas: Virtualization and environments, Javascript, Alternate PHP run-times, PHP internals, Development principles, Security, Mobile-first design, Testing (unit, functional, etc.), Version control, User Experience/Usability, Building APIs (REST, SOAP, whatever), Continuous Integration, Framework-related topics, and Professional development.

Global diversity CFP day

In 2019 there will be numerous workshops hosted around the globe encouraging and advising newbie speakers to put together your very first talk proposal and share your own individual perspective on any subject of interest to people in tech.
* Twitter: (@gdcfpday)
*Save the Date: March 2, 2019
*Register here: https://www.globaldiversitycfpday.com/?utm_source=scotphp

CoderCruise

Then there is CoderCruise which will take place on August 19-23. It's a cruise that takes off from Port Canaveral, Florida and goes to the Bahamas.
* Twitter: (@codercruise)
*Submission deadline: March 3, 2019
*Submit via: https://www.papercall.io/codercruise-2019
* For more info on the conference: https://www.codercruise.com/
* This is a polyglot conference so looking for speakers on a wide variety of languages (PHP, JavaScript, Java, Python, etc.) and on various tech topics.

PHP Conference Asia 2019

There is also PHP Conference Asia 2019, which will take place on June 24-25 at Microsot Singapore.
*Submission deadline: March 8, 2019
*Submit via: https://cfp.phpconf.asia/
* For more info on the conference: https://2019.phpconf.asia/
* Twitter: (@PHPConfAsia)
* Speaker package includes: Speaker package: Full conference pass, lunch, receptions and activities included in regular conference. We'll pick you up and drop you off to/from the airport so you don't have to worry about it. Speakers' dinner on the first evening of the conference (24th June 2019). Transport to and from the conference venue will be included
* For speakers remote to the Area: 2 complimentary hotel nights and
we can consider providing grants to partially cover the air-fare for speakers who might have financial difficulties. This is on a case-by-case basis.
* Speakers will be provided with a projector, a wireless hand-held microphone and a screen for their presentation. Speakers should prepare their slides in 4x3 aspect ratio. Speakers should bring any equipment they need to connect to projectors (HDMI). It is also suggested that you reduce your dependency on the in-house internet connection as possible.
*In Submission: Make sure your talk title and abstract define the exact topic you want to talk about and what you hope people will learn from the session.
*Talk Ideas: Virtualization and environments, Javascript, Alternate PHP run-times, PHP internals, Development principles, Security, Mobile-first design, Testing (unit, functional, etc.), Version control, User Experience/Usability, Building APIs (REST, SOAP, whatever), Continuous Integration, Framework-related topics, and Professional development.

Cascadia PHP

Another conference to apply to is Cascadia PHP, which will take place on September 19-21 at University Place Hotel & Conference Center in Portland, Oregon.
*Submission deadline: April 15, 2019
*Submit via: https://cfp.cascadiaphp.com/
* For more info on the conference: https://www.cascadiaphp.com/venue
* Twitter: (@CascadiaPHP)
* Speaker package includes: Speaker package: Full conference pass, lunch, receptions and activities included in regular conference. For speakers remote to the Area: Complimentary airfare/travel, 2 complimentary hotel nights and we'll pick you up and drop you off to/from the airport so you don't have to worry about it.
Speakers will be provided with a projector, a wireless lapel microphone and a screen for their presentation (size depends on the room). Speakers should bring any equipment they need to connect to projectors (VGA). It is also suggested that you reduce your dependency on the in-house internet connection as possible.
*In Submission: make sure your talk title and abstract define the exact topic you want to talk about and what you hope people will learn from the session.
*Talk Ideas: PHP internals, Version control, Framework-related topics, Building APIs (REST, SOAP, whatever), Mobile-first design, Professional development, Testing (unit, functional, etc.), Alternate PHP run-times, Development principles, Continuous Integration, Getting involved in the PHP community, User Experience/Usability, Technology at large, Security, Connecting to Different APIs, Development Tools, Virtualization and environments, Javascript, Modern hosting practices, Language Features, Databases, Refactoring legacy applications, Running/contributing to open source projects, AI and AR, and User Groups.

Nomad PHP

Last but not least - this is an ongoing call for papers. This is perfect if you want to present from the comfort of your office, home or really wherever you are. It’s via RingCentral meetings and will be live and recorded. This is for none other than Nomad PHP.
* Twitter: (@nomadphp)
* Deadline: Anytime :D
* Talk length: 45 - 60 minutes.
* Talks should be unique to Nomad PHP and not available in video format online.
* Talk should not be recorded or made available elsewhere online for at least 3 months following your talk.
* The talk will be featured on our page and promoted via social media.
* Speakers will receive a financial stipend.
* Upon being selected we will reach out with further details.
*Talk ideas: AI & Machine Learning, APIs, Containerization, Databases, DevOps, Documentation, Frameworks, Performance, Security, Serverless, Testing, Tools, Upgrading/ Modernization, and more.
*Submit here: https://www.papercall.io/nomadphp
Now that you have some information - make sure to apply to all of these options! Can't wait to see all of your awesome talks you present :D!
7687 views · 5 years ago
Iterator in PHP

Every time I see this
$users = [new User(), new User()];

I see a lost opportunity to use Iterator.

Why Iterators?

Collections are an awesome way to organize your previously no-named array. There is a couple of reasons why you should use iterators. One of reason stays for behavior, you can specify exact behavior on standard calls such as next, current, valid etc. Other reason could be that you want to ensure that collection contains an only specific type of an object.

Understand a suffer from using an array of unknown value types.
Very common in the PHP world arrays are used to store all kind of data, in many dimensions in many nested forms. Arrays introduced infinite flexibility to the developer, but because of that, they become very evil.

Example:

- Your function (getUsers) returns an array of User objects.
- Another function (setUsersToActiveState) using getUsers output array and set all users active status to true.
- setUsersToActiveState loop through the array and expect to call a specific method on array item. For example, the method name is getActiveStatus.
- If given array is an array of desired objects which have a callable method getActiveStatus, all fine. But if not exception will be thrown.
- How we can ensure that given array is always an array of objects of a specific type?

public function getUsers(): array
{

return $userArray;
}

public function setUsersToActiveState()
{
$users = $this->getUsers();

foreach ($users as $user) {
if(!$user->getActiveStatus()) {
$user->setActiveStatus(true);
}
}
}

There immediately two problems occurred.
    . One is the problem of type. Our IDE doesn't know what's inside array of $users, so because of that IDE can't suggest us how to use $user element. (I put this comment block above foreach, it works for phpStorm and I guess for some other IDEs)
    . Your colleagues! How they possibly know what's inside array if there is no any hint.
    . Bonus problem, getUsers can return literally any array and there won't be warning in the system.

Solution



class UsersCollection implements \IteratorAggregate
{

private $users = [];

public function getIterator() : UserIterator
{
return new UserIterator($this);
}

public function getUser($position)
{
if (isset($this->users[$position])) {
return $this->users[$position];
}

return null;
}

public function count() : int
{
return count($this->users);
}

public function addUser(User $users)
{
$this->users[] = $users;
}
}

class UserIterator implements \Iterator
{

private $position = 0;


private $userCollection;

public function __construct(UsersCollection $userCollection)
{
$this->userCollection = $userCollection;
}

public function current() : User
{
return $this->userCollection->getUser($this->position);
}

public function next()
{
$this->position++;
}

public function key() : int
{
return $this->position;
}

public function valid() : bool
{
return !is_null($this->userCollection->getUser($this->position));
}

public function rewind()
{
$this->position = 0;
}
}

Tests

Off course there is the tests to ensure that our Collection and Iterator works like a charm. For this example I using syntax for PHPUnit framework.

class UsersCollectionTest extends TestCase
{

public function testUsersCollectionShouldReturnNullForNotExistingUserPosition()
{
$usersCollection = new UsersCollection();

$this->assertEquals(null, $usersCollection->getUser(1));
}


public function testEmptyUsersCollection()
{
$usersCollection = new UsersCollection();

$this->assertEquals(new UserIterator($usersCollection), $usersCollection->getIterator());

$this->assertEquals(0, $usersCollection->count());
}


public function testUsersCollectionWithUserElements()
{
$usersCollection = new UsersCollection();
$usersCollection->addUser($this->getUserMock());
$usersCollection->addUser($this->getUserMock());

$this->assertEquals(new UserIterator($usersCollection), $usersCollection->getIterator());
$this->assertEquals($this->getUserMock(), $usersCollection->getUser(1));
$this->assertEquals(2, $usersCollection->count());
}

private function getUserMock()
{
}
}


class UserIteratorTest extends MockClass
{

public function testCurrent()
{
$iterator = $this->getIterator();
$current = $iterator->current();

$this->assertEquals($this->getUserMock(), $current);
}


public function testNext()
{
$iterator = $this->getIterator();
$iterator->next();

$this->assertEquals(1, $iterator->key());
}


public function testKey()
{
$iterator = $this->getIterator();

$iterator->next();
$iterator->next();

$this->assertEquals(2, $iterator->key());
}


public function testValidIfItemInvalid()
{
$iterator = $this->getIterator();

$iterator->next();
$iterator->next();
$iterator->next();

$this->assertEquals(false, $iterator->valid());
}


public function testValidIfItemIsValid()
{
$iterator = $this->getIterator();

$iterator->next();

$this->assertEquals(true, $iterator->valid());
}


public function testRewind()
{
$iterator = $this->getIterator();

$iterator->rewind();

$this->assertEquals(0, $iterator->key());
}

private function getIterator() : UserIterator
{
return new UserIterator($this->getCollection());
}

private function getCollection() : UsersCollection
{
$userItems[] = $this->getUserMock();
$userItems[] = $this->getUserMock();

$usersCollection = new UsersCollection();

foreach ($userItems as $user) {
$usersCollection->addUser($user);
}

return $usersCollection;
}

private function getUserMock()
{
}
}


Usage


public function getUsers(): UsersCollection
{
$userCollection = new UsersCollection();

foreach ($whatIGetFromDatabase as $user) {
$userCollection->addUser($user);
}
return $userCollection;
}

public fucntion setUsersToActiveState()
{
$users = $this->getUsers();

foreach ($users as $user) {
if(!$user->getActiveStatus()) {
$user->setActiveStatus(true);
}
}
}

As you can see setUsersToActiveState remains the same, we only do not need to specify for our IDE or collagues what type $users variable is.

Extending functionalities

Believe or not you can reuse this two objects and just change names of variables to fit most of the needs. But if you want any more complex functionality, than feel free to add it in iterator or collection.

Example 1


For example, let's say that userCollection accepts only users with age more than 18. Implementation will happen in UsersCollection class in the method addUser.

 public function addUser(User $users)
{
if ($user->getAge() > 18) {
$this->users[] = $users;
}
}

Example 2

You need to add bulk users. Then you can expand your userCollection with additional method addUsers and it might look like this.

public function addUsers(array $users)
{
foreach($users as $user) {
$this->addUser(User $users);
}
}

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