![PHP7, hhvm & co
Null Coalesce Operator (??)
<?php
$username = $_GET['user'] ?? 'nobody';
$username = isset($_GET['user']) ? $_GET['user'] : 'nobody';
// Method/function call
$model = Model::get($id) ?? $default_model;
if (($model = Model::get($id)) === NULL) { $model =
$default_model; }
// Chained
$x = NULL; $y = NULL; $z = 3; var_dump($x ?? $y ?? $z);
https://wiki.php.net/rfc/isset_ternary](https://image.slidesharecdn.com/php7hhvmandco-150729195918-lva1-app6892/85/Php7-hhvm-and-co-26-320.jpg)
![PHP7, hhvm & co
QB
<?php
class OilPaintFilter {
/** @var int32 */ public $levels = 25;
/** @var int32 */ public $filterSize = 5;
/** * @engine qb
*
* @param image $dst
* @param image $src
*
* @local float32[*][r,g,b,a] $bin
* @local float32 $max_intensity
* @local int32 $(current_index|max_index)
* @local int32 $(filter_x|filter_y|filter_offset)
* @local int32 $(x|y|x_limit|y_limit)
* @local int32 $(width|height)
* @local float32[r,g,b,a] $pixel
* @local float32 $multiplier */
public function filter(&$dst, $src) {…](https://image.slidesharecdn.com/php7hhvmandco-150729195918-lva1-app6892/85/Php7-hhvm-and-co-42-320.jpg)
Php7 hhvm and co
- 1. PHP 7, HHVM & CO #PHPKonf Istanbul Pierre Joye
- 2. PHP7, hhvm & co Pierre Joye @pierrejoye pierre@php.net http://www.slideshare.net/pierrej PHP Core developer Contributors to numerous OSS projects Portability fan
- 3. PHP7, hhvm & co Stats
- 4. PHP7, hhvm & co Awesome new extension installer https://github.com/FriendsOfPHP/pickle
- 5. PHP7, hhvm & co What‘s going in the php world? https://wiki.php.net/rfc/isset_ternary
- 6. PHP7, hhvm & co PHP 5.3 2009 - 2014
- 7. PHP7, hhvm & co PHP 5.4 and 5.5 Security fixes only
- 8. PHP7, hhvm & co PHP 5.4 2012 - 2015
- 9. PHP7, hhvm & co PHP 5.5 2013 - 2016
- 10. PHP7, hhvm & co PHP 5.6.11 is out!
- 11. PHP7, hhvm & co 5 + 1 = 7
- 12. PHP7, hhvm & co 6.6.6
- 13. PHP7, hhvm & co PHP 7.0.0beta2 yesterday!
- 14. PHP7, hhvm & co PHP 7.0 – Future is now
- 15. PHP7, hhvm & co PHP 7.0 – speed++
- 16. PHP7, hhvm & co LIES, DAMN LIES AND BENCHMARKS
- 17. PHP7, hhvm & co
- 18. PHP7, hhvm & co
- 19. PHP7, hhvm & co Features • Rewamped Engine • True 64bit support • Large string and LFS (Large file support) • Consistent variables syntax • Error exception instead of fatal error • Scalar type declarations • Zero cost asserts
- 20. PHP7, hhvm & co Features • Secure RNG • PHP4 constructors deprecated • JIT enabled PCRE • Removed ext/mysql, ext/ereg and more • New ?? Operator • New JSON parser • Many other features, a lot already target 7.1
- 21. PHP7, hhvm & co Error exception instead of fatal error
- 22. PHP7, hhvm & co Error exception https://wiki.php.net/rfc/catchable-call-to-member-of-non-object <?php try { $x = null; var_dump($x->method()); // The exception class name is EngineException // in alpha1 } catch (Error $e) { // pass } echo "Aliven";
- 23. PHP7, hhvm & co Scalar Type Declarations
- 24. PHP7, hhvm & co Scalar Type Declarations <?php declare(strict_types = 1); function add(int $a, int $b) : int { return $a + $b; } $x = add(1, 2); // The exception class name TypeException // in alpha1 $y = add(0.1, 0.2); // TypeError exception https://wiki.php.net/rfc/scalar_type_hints_v5
- 25. PHP7, hhvm & co Null Coalesce Operator (??)
- 26. PHP7, hhvm & co Null Coalesce Operator (??) <?php $username = $_GET['user'] ?? 'nobody'; $username = isset($_GET['user']) ? $_GET['user'] : 'nobody'; // Method/function call $model = Model::get($id) ?? $default_model; if (($model = Model::get($id)) === NULL) { $model = $default_model; } // Chained $x = NULL; $y = NULL; $z = 3; var_dump($x ?? $y ?? $z); https://wiki.php.net/rfc/isset_ternary
- 27. PHP7, hhvm & co PHP Language Specification https://github.com/php/php-langspec
- 28. PHP7, hhvm & co Open & Public Specifications Competions++
- 29. PHP7, hhvm & co
- 30. PHP7, hhvm & co
- 31. PHP7, hhvm & co (Most) Focus on Speed
- 32. PHP7, hhvm & co
- 33. PHP7, hhvm & co SPEED is NOT SCALE
- 34. PHP7, hhvm & co SPEED is UX
- 35. PHP7, hhvm & co Scale is Server Side Architecture (Apps, Ops, Net, …)
- 36. PHP7, hhvm & co My code sucks.
- 37. PHP7, hhvm & co Yours too.
- 38. PHP7, hhvm & co Steroids++
- 39. PHP7, hhvm & co So?
- 40. PHP7, hhvm & co
- 41. PHP7, hhvm & co
- 42. PHP7, hhvm & co QB <?php class OilPaintFilter { /** @var int32 */ public $levels = 25; /** @var int32 */ public $filterSize = 5; /** * @engine qb * * @param image $dst * @param image $src * * @local float32[*][r,g,b,a] $bin * @local float32 $max_intensity * @local int32 $(current_index|max_index) * @local int32 $(filter_x|filter_y|filter_offset) * @local int32 $(x|y|x_limit|y_limit) * @local int32 $(width|height) * @local float32[r,g,b,a] $pixel * @local float32 $multiplier */ public function filter(&$dst, $src) {…
- 43. PHP7, hhvm & co QB <?php function calc($n, &$a) { $b = 18; while($n) { $a = $b * $b * $b * $b; $n--; } } $n = 5000000; $a = 0; calc($n, $a); $end = microtime(true);
- 44. PHP7, hhvm & co QB Source: http://php-qb.net/index.php/2-uncategorised/27-comparing-performance-in-qb-with-hhvm See http://benchmarksgame.alioth.debian.org/u32/performance.php?test=spectralnorm or other
- 45. PHP7, hhvm & co Zephir
- 46. PHP7, hhvm & co Zephir Optimization & code generation Compilation + optimization Native execution
- 47. PHP7, hhvm & co Zephir namespace MyLibrary; class Filter { public function alpha(string str) { char ch; string filtered = ""; for ch in str { if (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') { let filtered .= ch; } } return filtered; } }
- 48. PHP7, hhvm & co Zephir <?php $filter = new MyLibraryFilter(); echo $filter>alpha("01he#l.lo?/1");
- 49. PHP7, hhvm & co PHP Alternative Implementations
- 50. PHP7, hhvm & co PHP Alternative Implementations • HHVM (native code) • Recki-ct (native code) • Phalanger (.net engine)
- 51. PHP7, hhvm & co
- 52. PHP7, hhvm & co HHVM PHP Cache Parser (AST in 7+) HHVM Opcodes Native Code JIT ~ Cache
- 53. PHP7, hhvm & co
- 54. PHP7, hhvm & co PHP PHP Cache Parser (AST in 7+) OpCodes
- 55. PHP7, hhvm & co Recki-ct
- 56. PHP7, hhvm & co Recki-CT PHP Cache Parser (AST in 7+) Recki IR JIT~ Native Code
- 57. PHP7, hhvm & co Recki-ct php 5.5 Recki-CT hhvm 3.2 hippy-c qb simple() 139.63357 1.00000 8.30447 7.65693 8.35018 simplecall() 38.99476 FAIL 1.32552 1.00000 FAIL simpleucall() 54.02041 1.00000 3.52439 1.51072 47.91090 simpleudcall () 52.14534 1.00000 3.75936 1.41614 47.55259 mandel() 21.26249 1.00000 2.03372 2.11208 FAIL mandel_typ ed() 23.16553 1.00000 2.11128 2.09212 3.00061 mandel2() 24.43275 1.00000 2.57704 1.87802 FAIL mandel2_ty ped() 23.79989 1.00000 2.90105 1.57193 7.11054
- 58. PHP7, hhvm & co Recki-ct php 5.5 Recki-CT hhvm 3.2 hippy-c qb ary(50000) 1.39338 FAIL 1.00000 4.47888 FAIL ary2(50000) 1.26952 FAIL 1.00000 2.28231 FAIL ary3(2000) 5.96015 FAIL 1.70997 1.00000 FAIL fibo(30) 39.48440 1.00000 1.60647 16.40883 FAIL hash1(50000) 1.70014 FAIL 1.00000 3.27314 FAIL hash2(500) 2.23648 FAIL 1.00000 1.30044 FAIL heapsort(2000 0) 3.67800 FAIL 1.00000 4.96699 FAIL
- 59. PHP7, hhvm & co Resources • http://wiki.php.net/rfc/ • http://zephir-lang.com/ • http://www.slideshare.net/ircmaxell/high- performance-php-phpnw • http://talks.php.net/fluent15#/ • https://github.com/google/recki-ct • http://blog.ircmaxell.com/2014/08/introducing- recki-ct.html • https://github.com/chung- leong/qb/wiki/Introduction
- 60. PHP7, hhvm & co Resources • https://edit.php.net/ • https://wiki.php.net/rfc/phpng • https://wiki.php.net/rfc/abstract_syntax_tree • http://hhvm.com/blog/6323/the-journey-of-a- thousand-bytecodes • https://github.com/php/php- src/blob/master/UPGRADING • https://github.com/php/php- src/blob/master/UPGRADING.INTERNALS
- 61. PHP7, hhvm & co Resources • http://phpdbg.com/ • http://windows.php.net/qa/ • http://qa.php.net/ • http://ongr.io • http://aka.ms/AzureCodeManiac2015
Editor's Notes
- #8: Optimum value engineering
- #9: September 2015
- #11: Pomato pap, tomato mom and a small tomato are crossing the road. The tomato pap tells the small tomato – hurry up, catchup. – secret files, not by word citation
- #15: Fall 2015 Stabilization RFCs in discussions More optimizatons coming
- #16: Fall 2015 Stabilization RFCs in discussions More optimizatons coming
- #20: Scalar types – Andrea Faulds, Anthony Ferrara … CSPRNG – Sammy Kaye Powers
- #22: Fall 2015 Stabilization RFCs in discussions More optimizatons coming
- #24: Fall 2015 Stabilization RFCs in discussions More optimizatons coming
- #26: Fall 2015 Stabilization RFCs in discussions More optimizatons coming
- #33: Yes but…. Speed is not scale Most of you have no scaling problem Your code simply sucks (mines too) Changing languages, servers, platforms do not fix scale issues Fix your code, design and architecture Fast PHP is about scale, not speed.
- #38: Except Lars‘
- #40: Except Lars‘
- #45: Function calls poorly implemented
- #50: Delivery Man: Morning, Sir, I've got a parrot for Mr "Poy-rot". Hercule Poirot: No no no! Poirot. It is pronounced "Pwa-roe". Delivery Man: I beg your pardon, Governor. I've got a "pwa-roe" for Mr "Poy-rot".