PHP Digest 155 (April 22 - May 6, 2019)

Fresh selection with links to news and materials. In the release: updates to PHP, Codeception 3.0 and other releases, short lambdas in PHP 7.4 and an overview of recent RFC proposals from PHP Internals, a portion of useful tools, and much more.

Enjoy reading!

News and Releases

• PHP 7.3.5
• PHP 7.2.18
• PHP 7.1.29
• Codeception 3.0 - Improved interactive console, repeat steps, support PHPUnit 8 and more.
• spiral / roadrunner 1.4.0 - Update the application server, balancer and process manager on Go. In release, a safe stop of workers, support for environment variables in configs, the ability to control workers in the pool, and more. There is a new site roadrunner.dev .
• PHP Russia 2019 - May 17, Moscow, Infospace. There are only a few days left until the last price increase.

Php internals

• [RFC] Arrow Functions 2.0 - The proposal passed the vote and accepted. Now PHP will have short anonymous functions using the syntax fn() => and automatic capture of variables from an external scop by value:

   $y = 1; $fn = fn($x) => $x + $y; 

  
  As long as functions can have only one expression strictly, the result of which will be returned. Multi-line functions may be implemented later. Hacking using the && operator as in JS does not work:
  Hidden text

   andOperator = ($x) => ($y = 10) && $x + $y; console.log(andOperator(5)); // 15 

   $andOperator = fn($x) => ($y = 10) && $x + $y; var_dump($andOperator(5)); // bool(true) 

  But you can use the hack using end() :
  Hidden text

   <?php function last(...$args) { return end($args); } $multipleLines = fn($x) => last( $y = $x * 10, // 10 $z = $y + 15, // 25 $x + $y + $z // 1 + 10 + 25      last() ); var_dump($multipleLines(1)); // int(36) 

  
  Or using array_slice() , thanks to Grikdotnet for the tip :
  
  Hidden text

   $multipleLines = fn($x) => array_slice([ $y = $x * 10, $z = $y + 15, $x + $y + $z ], -1)[0]; var_dump($multipleLines(1)); // int(36) 

  
  
• [RFC] Deprecate PHP Short open tags - The proposal considered the idea to remove the possibility of using short tags <? however, it was greeted by a storm of indignation and dispute. Therefore, a much milder way was proposed, in which in the next versions the possibility remains available as is and deprecation warning will be thrown.
• [RFC] Spread Operator in Array Expression - Offer accepted almost unanimously. Operator ... will now be available in arrays.
  Hidden text

   $parts = ['apple', 'pear']; $fruits = ['banana', 'orange', ...$parts, 'watermelon']; // ['banana', 'orange', 'apple', 'pear', 'watermelon']; 

  You can also quickly convert an iterator into an array instead of using iterator_to_array :

   $array = [...$iter]; 

• RFC: Allow throwing exceptions from __toString () - Nikita continues to systematically correct the “sadness of PHP” one by one. This time we are talking about the possibility of throwing an exception in __toString() . Another nice and not at all trivial improvement for PHP 7.4, which eliminates the need to use any workarounds 1 , 2 .
• PHP Internals News # 7 - Derick Rethans talks to Zeev Suraski about JIT in PHP 8 and earlier implementation attempts.
• PHP Internals News # 8 - Conversation with George Banyard, PHP documentation contributor, about short tags.

Instruments

• kalessil / production-dependencies-guard - The package prevents the addition of dev dependencies, for example, test and debugging tools, to the require section of the composer.json file, and also does several other checks.
• jakoch / awesome-composer - Selection of resources and tools for Composer.
• twirphp / twirp - Port of the Twitch Twirp RPC framework for PHP. Post in support.
• EFTEC / BladeOne - Framework independent version of Blade in one file and without dependencies.
• fe3dback / str - Object wrapper over string with a host of methods for manipulating and supporting multibyte strings.

Symfony

• saa-nl / zymfony-bundle - A set of components for migration from Zend Framework 1 to Symfony 4. The name reminded the picture:
• Symfony Week # 643 (April 22-28, 2019)
• Symfony Week # 644 (April 29 - May 5, 2019)

Laravel

• VanOns / laraberg - The port of Gutenberg block editor from WordPress for Laravel.
• aimeos / aimeos-laravel - Another e-commerce solution based on Laravel.
• How Eloquent Works - Laravel Core Adventures
• We start working with event sourcing in Laravel - using spatie / laravel-event-projector .
• Taylor Podcast Laravel Snippet # 12 - In the release of Vue SPAs, Intertia.js, Livewire, Lambda short, PHP RFC.

Yii

• Insolita / yii2-codestat - Counts application statistics on Yii 2.
• omnilight / yii2-scheduling - Task scheduler port from Laravel for Yii 2.
• Yii is joined by Mehdi Achour
• Review Yii3

Async php

• Writing RESTful API with ReactPHP: Basic HTTP Authentication , and Authentication with JWT
• Asynchronous PHP. What for?

Study materials

• PHP compiler, also known as the rabbit hole FFI - An interesting post about the types of compilers, the principles of their design, and actually about the implementation of the PHP compiler ahead-of-time (AOT) using LLVM and PHP itself.
• As we migrated 54357 lines of code from Nette to Symfony together in less than 80 hours.
• Run PHPUnit tests from PhpStorm
• Series of articles on PSR-14 - supplemented by issues of use in deferred and asynchronous environments.
• azdanov / php-interview-exercises - A useful repository to practice solving typical algorithmic tasks that can be given during interviews.
• 5 ways to deploy PHP code in terms of hayload
• Statistics and monitoring of PHP scripts in real time. ClickHouse and Grafana go to Pinba for help.
• Breaking a Singleton design pattern in PHP
• Stream to update spatie / period - to pry into someone else's monitor is quite informative.
• SDCast # 103: Away Nikita Popov - Interview with Nikita in Russian about various aspects of PHP and its development.

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