The Latest in PHP: June 2019 Edition

Markdown file can be found here https://github.com/trianglephp/latest-in-php

Transcript

1. The Latest in PHP
   June 2019 Edition
   

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2. Presented by
   Chris Gmyr
   @cmgmyr
   

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3. PHP Supported Versions
   4 7.1 Security Only until Dec 1, 2019
   4 7.2 & 7.3 Active Development
   4 7.4 is underway (~Nov 2019, last 7 branch)
   4 8.0 in 2020
   More Info:
   4 http://php.net/supported-versions.php
   

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4. PHP Releases
   4 7.1.[29-30]
   4 7.2.[18-19]
   4 7.3.[5-6]
   4 7.4.0 Alpha 1!
   7.1.* - 7.3.* have Security and Bug fixes
   More Info:
   4 http://php.net/ChangeLog-7.php
   

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5. PHP RFC: Arrow Functions 2.0
   (Implemented in 7.4)
   // before
   function array_values_from_keys($arr, $keys) {
   return array_map(function ($x) use ($arr) { return $arr[$x]; }, $keys);
   }
   // after
   function array_values_from_keys($arr, $keys) {
   return array_map(fn($x) => $arr[$x], $keys);
   }
   https://wiki.php.net/rfc/arrow_functions_v2
   

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6. PHP RFC: Spread Operator in Array
   Expression
   (Implemented in 7.4)
   PHP has already supported argument unpacking (AKA spread operator)
   since 5.6. This RFC proposes to bring this feature to array expression.
   $parts = ['apple', 'pear'];
   $fruits = ['banana', 'orange', ...$parts, 'watermelon'];
   // ['banana', 'orange', 'apple', 'pear', 'watermelon'];
   https://wiki.php.net/rfc/spread_operator_for_array
   

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7. PHP RFC: Nullsafe Calls
   (Draft)
   A new operator would be added to the language: ?->.
   Calling $obj?->foo(..) behaves identically to $obj->foo(..)
   if $obj is not null. If $obj is null, then it returns null.
   function f($o) {
   return $o?->mayFail1()?->mayFail2()?->mayFail3()?->mayFail4();
   }
   https://wiki.php.net/rfc/nullsafe_calls
   

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8. PHP RFC: Alternative "use" syntax for
   Closures
   (Under Discussion)
   https://wiki.php.net/rfc/alternative-closure-use-
   syntax
   

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9. PHP RFC: Alternative "use" syntax for
   Closures
   // before...
   $closure = function (
   ArgumentType $argument1,
   ArgumentType $argument2,
   ArgumentType $argument3,
   ArgumentType $argument4
   ) use (
   $importVariable1,
   &$importVariable2,
   $importVariable3,
   &$importVariable4
   ): ReturnType {
   // ...
   };
   

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10. PHP RFC: Alternative "use" syntax for
    Closures
    // after...
    $closure = function (
    ArgumentType $argument1,
    ArgumentType $argument2,
    ArgumentType $argument3,
    ArgumentType $argument4
    ): ReturnType {
    use $importVariable1, &$importVariable2;
    use $importVariable3, &$importVariable4;
    // ...
    };
    

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11. PHP Quick Tip
    

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12. levenshtein()
    Calculate Levenshtein distance between two strings
    $str1 = "apple";
    $str2 = "appplee";
    echo levenshtein($str1, $str2); // 2
    https://www.php.net/manual/en/
    function.levenshtein.php
    

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13. // input misspelled word
    $input = 'carrrot';
    // array of words to check against
    $words = array('apple','pineapple','banana','orange',
    'radish','carrot','pea','bean','potato');
    // no shortest distance found, yet
    $shortest = -1;
    // loop through words to find the closest...
    

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14. foreach ($words as $word) {
    // calculate the distance between the input word, and the current word
    $lev = levenshtein($input, $word);
    // check for an exact match
    if ($lev == 0) {
    $closest = $word;
    $shortest = 0;
    break;
    }
    // if this distance is less than the next found shortest
    // distance, OR if a next shortest word has not yet been found
    if ($lev <= $shortest || $shortest < 0) {
    // set the closest match, and shortest distance
    $closest = $word;
    $shortest = $lev;
    }
    }
    

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15. echo "Input word: $input\n";
    if ($shortest == 0) {
    echo "Exact match found: $closest\n";
    } else {
    echo "Did you mean: $closest?\n";
    }
    ---
    Input word: carrrot
    Did you mean: carrot?
    

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16. Latest Versions
    4 Laravel: 5.8.24
    4 Symfony: 4.3.1
    4 Drupal: 8.6.17
    4 PHPStorm: 2019.1.3
    4 VSCode: 1.35
    

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17. PHP Conferences - July
    Laracon VII
    July 24–25, New York, New York
    https://laracon.us
    

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18. PHP Conferences - September
    SymfonyLive Berlin 2019
    September 24–27, Berlin, Germany
    http://berlin2019.live.symfony.com
    Cascadia PHP
    September 19–21, Portland, OR
    https://cascadiaphp.com
    

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19. Nomad PHP
    US: Double Loop: TDD & BDD Done Right
    presented by Jessica Mauerhan
    June 20, 2019 at 06:00pm PDT
    UK: The Dark Corners of the SPL
    presented by Omni
    Adams
    June 20, 2019 at 11:00am PDT
    https://nomadphp.com/
    

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20. Open Call for Papers
    PHPCon Poland 2019
    CfP Deadline: July 10, 2019
    November 15–17, Szczyrk, Poland
    https://2019.phpcon.pl
    PHP.Barcelona Conferenence 2019
    CfP Deadline: September 30th, 2019
    November 12–13, Barcelona, Spain
    https://php.barcelona
    

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21. Upcoming regional events
    All Things Open
    Oct 13-15, 2019
    http://allthingsopen.org
    Early bird going on now for $99!
    

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22. Notable News & Articles
    4 PHP Versions Stats - 2019.1 Edition
    4 Package: composer-git-hooks
    4 Package: prestissimo (composer plugin)
    4 Taylor Otwell: Laravel Live QA
    4 GitHub Actions for PHP Developers
    4 A Look At PHP’s isset()
    4 Structuring the Docker setup for PHP Projects
    

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23. Next Month @ TrianglePHP
    TDB
    Presented By YOU?!?!
    Thursday, July 18, 6pm @ Atlantic BT
    Need an Idea?
    4 Testing
    4 Security
    4 Performance
    4 Git
    

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24. Have a Job/Need a Job
    Who's hiring?
    Who's looking?
    What are you looking for?
    

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25. Tonight @ TrianglePHP
    Simple DevOps with Laravel's Forge &
    Envoyer
    Presented By - Chris Gmyr
    Thank you to Atlantic BT for hosting and refreshments!
    

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