T3DD16 pushing the limits with React PHP

It's 2016 and times have changed - yet PHP is still most often associated with your average product catalogue or blogging platform. In this talk you will learn that PHP's huge ecosystem has way more to offer and PHP is not inferior at all to its evil cousin Node.js.

You will learn about the core concepts of async PHP and why you too should care about React PHP being a real thing. The talk has a strong focus on sparking the idea that PHP can be way faster and more versatile than you probably thought. Bring along an open mind and through lots of examples and demos learn why what sounds crazy at first might soon be a valuable addition in your toolbox.

Transcript

1. pushing the limits with React PHP why React PHP is awesome and why YOU should care
2. Agenda - Hello! - PHP, the web of the ‘90s? - Enter React - Core components - Examples and demo time - Conclusions - Short break - Workshop! 2
3. Hello! 3
4. $ whoami - Christian Lück 4
5. $ whoami - Christian Lück → Christian Lueck 5
6. $ whoami - Christian Lück → Christian Lueck → @clue 6
7. $ whoami - Christian Lück → Christian Lueck → @clue → @another_clue 7
8. $ whoami - Christian Lück → Christian Lueck → @clue → @another_clue - Team Coach / Software Engineering, working professionally for 10 years - Masters degree in Information Systems Engineering 8
9. $ whoami - Christian Lück → Christian Lueck → @clue → @another_clue - Team Coach / Software Engineering, working professionally for 10 years - Masters degree in Information Systems Engineering - Started coding 15 years ago and could never stop :) - Passionate about pushing the limits! - Open source contributor and maintainer (React, Docker, Graphs and more) 9
10. $ whoami - Christian Lück → Christian Lueck → @clue → @another_clue - Team Coach / Software Engineering, working professionally for 10 years - Masters degree in Information Systems Engineering - Started coding 15 years ago and could never stop :) - Passionate about pushing the limits! - Open source contributor and maintainer (React, Docker, Graphs and more) - Quit my job in April to focus on thrilling things ahead… - Freelance job: Bigger momentum, higher impact, spread the word! 10
11. Who are you? 11 now that you know me…
12. Who are you? 12 now that you know me… - PHP developers? - architecs / engineers?
13. Who are you? 13 now that you know me… - PHP developers? - architecs / engineers? - know React?
14. Who are you? 14 now that you know me… - PHP developers? - architecs / engineers? - know React? - know the other React?
15. PHP, the web of the ‘90s? 15
16. PHP and the web of the ‘90s - traditional LAMP stack - Request-Response-Cycle Apache Client PHP MySQL 16
17. PHP and the web of the ‘90s - traditional LAMP stack - Request-Response-Cycle - PHP is too slow? - We sure can improve this… 17 Apache Client PHP MySQL
18. PHP and the web of the ‘90s - traditional LAMP stack - Request-Response-Cycle - PHP is too slow? - We sure can improve this… 18 Apache Client PHP MySQL Apache Client FPM MySQL PHP PHP
19. PHP and the web of the ‘90s - traditional LAMP stack - Request-Response-Cycle - PHP is too slow? - We sure can improve this… 19 Apache Client PHP MySQL Apache Client FPM MySQL PHP PHP nginx Client FPM MySQL PHP PHP
20. PHP and the web of the ‘90s - traditional LAMP stack - Request-Response-Cycle - PHP is too slow? - We sure can improve this… 20 Apache Client PHP MySQL Apache Client FPM MySQL PHP PHP nginx Client FPM MySQL PHP PHP nginx Client FPM memcache PHP PHP MySQL
21. PHP may not be pretty… 21
22. PHP may not be pretty… but it gets the job done! 22
23. Knock knock! Who’s there? 23
24. Knock knock! 2016! Who’s there? 24
25. Knock knock! 2016! - Separation of concerns (Frontend↔Backend) - HTTP APIs (RESTful) - Integration with 3rd parties - Live-Data (ticker) - CLI tools Who’s there? 25
26. node js? 26
27. node js! 27
28. Enter React! 28
29. What is React? 29
30. What is React? non-blocking I/O 30
31. What is React? non-blocking I/O event-driven 31
32. What is React? non-blocking I/O event-driven async 32
34. 100% 34
35. 100% pure PHP 35
36. 100% pure PHP no extensions 36
37. 100% pure PHP no extensions no magic 37
38. What does that even mean?! 38
39. the idea 39
40. the idea calculations are fast 40
41. the idea calculations are fast I/O is slow 41
42. I/O is everywhere 42
43. I/O is everywhere third party HTTP APIs (RESTful, SOAP, you name it…) 43
44. I/O is everywhere third party HTTP APIs (RESTful, SOAP, you name it…) mysql, postgres 44
45. I/O is everywhere third party HTTP APIs (RESTful, SOAP, you name it…) mysql, postgres filesystem I/O (session files) 45
46. I/O is everywhere third party HTTP APIs (RESTful, SOAP, you name it…) mysql, postgres filesystem I/O (session files) redis, memcache 46
47. 47 Source: Latency Numbers Every Programmer Should Know: https://gist.github.com/jboner/2841832 CPU vs I/O
48. I/O is slow! 48
49. I/O is slow! So why wait? 49
50. This is React 50
51. This is React 51 Start multiple I/O operations (non-blocking)
52. This is React 52 Start multiple I/O operations (non-blocking) Get notified when something happens (react)
53. This is React 53 Start multiple I/O operations (non-blocking) Get notified when something happens (react) Don’t waste time waiting
54. What React is not 54
55. What React is not - React is not black magic / vodoo - Does not make your code faster magically 55
56. What React is not - React is not black magic / vodoo - Does not make your code faster magically - React is not a framework - Indepentent components (libraries) 56
57. What React is not - React is not black magic / vodoo - Does not make your code faster magically - React is not a framework - Indepentent components (libraries) - React is not a replacement for your favorite framework - Symfony is here to stay 57
58. What React is not - React is not black magic / vodoo - Does not make your code faster magically - React is not a framework - Indepentent components (libraries) - React is not a replacement for your favorite framework - Symfony is here to stay - React is not the new buzz - React is here to stay as well (started in 2012) 58
59. React core components 59
60. React Core components - Event loop (reactor) - Promises - Streams 60
61. Event loop Consumers - THE core, low-level component 61
62. Event loop Consumers - THE core, low-level component - Create an instance - Just use the Factory - Additional extensions for bigger payloads - something inbetween… - just pass the $loop around - Start running - keeps running forever - unless stopped or done 62
63. Event loop Consumers - THE core, low-level component - Create an instance - Just use the Factory - Additional extensions for bigger payloads - something inbetween… - just pass the $loop around - Start running - keeps running forever - unless stopped or done 63 $loop = Factory::create(); // something inbetween // pass the $loop around to all components $loop->run();
64. Event loop Implementors - Reactor pattern (hence the name) 64 -
65. Event loop Implementors - Reactor pattern (hence the name) - wait for stream resources to become - readable - writable - start timers - once - periodic - ticks 65 -
66. Event loop Implementors - Reactor pattern (hence the name) - wait for stream resources to become - readable - writable - start timers - once - periodic - ticks 66 $loop->addTimer(0.5, function () { echo ‘world’; }); $loop->addTimer(0.3, function () { echo ‘hello’; });
67. Event loop Implementors - Reactor pattern (hence the name) - wait for stream resources to become - readable - writable - start timers - once - periodic - ticks 67 $loop->addTimer(0.5, function () { echo ‘world’; }); $loop->addTimer(0.3, function () { echo ‘hello’; }); $loop->addReadStream($stream, $fn); $loop->addWriteStream($stream, $fn);
68. Promises - Placeholder for a single future result - Possible states: - pending - fulfilled (successfully resolved) - rejected (Exception occured) 68
69. Promises - no more imperative code flow - instead (tell, don’t ask) 69 $a->then($fulfilled = null, $rejected = null); $a->then(‘process’); $a->then(‘process’, ‘var_dump’);
70. Streams - Process large strings in chunks as they happen (think downloads) - Types - Readable (e.g. STDIN pipe) - Writable (e.g. STDOUT pipe) - Duplex (e.g. TCP/IP connection) 70
71. Streams - interfaces, events and listeners: 71 $dest->write(‘hello’); $source->on(‘data’, function ($data) { var_dump($data); }); $source->on(‘close’, function () { echo ‘stream closed’; });
72. Streams - interfaces, events and listeners: 72 $dest->write(‘hello’); $source->on(‘data’, function ($data) { var_dump($data); }); $source->on(‘close’, function () { echo ‘stream closed’; }); $source->pipe($gunzip)->pipe($badwords)->pipe($dest);
73. Avoid blocking! - The loop must not be blocked 73
74. Avoid blocking! - The loop must not be blocked - Many functions / lib assume blocking by default - Anything >1ms should be reconsidered 74
75. Avoid blocking! - The loop must not be blocked - Many functions / lib assume blocking by default - Anything >1ms should be reconsidered - Alternatives - Single result: Promises - Evented: Streams 75
76. Avoid blocking! - The loop must not be blocked - Many functions / lib assume blocking by default - Anything >1ms should be reconsidered - Alternatives - Single result: Promises - Evented: Streams - Need a blocking function? - Fork off! - Use IPC 76
77. Avoid blocking! - The loop must not be blocked - Many functions / lib assume blocking by default - Anything >1ms should be reconsidered - Alternatives - Single result: Promises - Evented: Streams - Need a blocking function? - Fork off! - Use IPC 77 Pay attention: - PDO, mysql etc. - file system access - network access - third-party APIs
78. Examples and demo time! 78
79. Socket server 79 react/socket - THE canonical chat example - broadcast all incoming msgs
80. Socket server 80 react/socket - THE canonical chat example - broadcast all incoming msgs - run example server - connect via telnet: $ telnet IP 8000
81. HTTP client 81 clue/buzz-react - Simple HTTP requests - inspired by kriswallsmith/buzz - PSR-7 compatible
82. HTTP client 82 clue/buzz-react - Simple HTTP requests - inspired by kriswallsmith/buzz - PSR-7 compatible - Promises and Streams - It’s fast…
83. HTTP client 83 clue/buzz-react - Simple HTTP requests - inspired by kriswallsmith/buzz - PSR-7 compatible - Promises and Streams - It’s fast… - benchmarks in following slides about clue/docker-react
84. Packagist API clue/packagist-api-react - get information about any Composer package - simple, Promise-based - lightweight wrapper between - KnpLabs/packagist-api - clue/buzz-react 84
85. Packagist API clue/packagist-api-react - get information about any Composer package - simple, Promise-based - lightweight wrapper between - KnpLabs/packagist-api - clue/buzz-react 85 - see its examples $ php examples/search.php
86. Docker client clue/docker-react - Run apps in isolated containers - “build, ship and run, anywhere” - Controlled through HTTP API - Promises and Streams 86
87. Docker client clue/docker-react - Run apps in isolated containers - “build, ship and run, anywhere” - Controlled through HTTP API - Promises and Streams 87 - see its promise examples $ php examples/info.php - see its streaming examples $ php examples/benchmark-exec.php
88. 700 MiB/s 88 dockerd maxed out PHP not
89. HTTP server react/http - Pure PHP, with no additional webserver - Under active development 89
90. HTTP server react/http - Pure PHP, with no additional webserver - Under active development - Lots of third-party integrations with traditional frameworks (symfony, slim, silex, PIMF etc.) 90
91. 5k requests/s 91
92. 5k requests/s 92 this is a local single core benchmark!
93. 5k requests/s 93 this is a local single core benchmark! dual core i3 => 10k requests/s
94. 5k requests/s 94 this is a local single core benchmark! dual core i3 => 10k requests/s 36M requests/h
95. Server sent events clue/sse-react - Server sent events (SSE) - aka. EventSource (browser API) - Streaming events to browser - limited browser support 95
96. Server sent events clue/sse-react - Server sent events (SSE) - aka. EventSource (browser API) - Streaming events to browser - limited browser support 96 - see examples connecting to initial chat $ php examples/chat-server.php - open browser: http://IP.:8001/
97. Websocket server cboden/ratchet - Async WebSocket server - bidirectional data flow between browser and server - better browser support 97
98. Redis client 98 clue/redis-react - Redis is a fast in-memory DB - very simple commands - very simple protocol - pipelined, Promise-based
99. Redis client 99 clue/redis-react - Redis is a fast in-memory DB - very simple commands - very simple protocol - pipelined, Promise-based - see its examples $ php examples/incr.php
100. Redis server 100
101. Redis server 101 - Official Redis is written in C
102. Redis server 102 clue/php-redis-server - Official Redis is written in C - Reimplementation is pure PHP
103. Redis server 103 clue/php-redis-server - Official Redis is written in C - Reimplementation is pure PHP - Very simple to add commands
104. Redis server 104 clue/php-redis-server - Official Redis is written in C - Reimplementation is pure PHP - Very simple to add commands - How fast could PHP possibly be? Let’s see…
105. Redis server 105 clue/php-redis-server - Official Redis is written in C - Reimplementation is pure PHP - Very simple to add commands - How fast could PHP possibly be? Let’s see… - see its bin $ php bin/redis-server.php - test via clue/redis-react - test via official redis CLI - run official redis benchmark during talk: - official server: ~90k OP/s - PHP server: ~50k OP/s
106. 50k OP/s pure PHP who needs native code anyway? 106
107. Redis framework 107 clue/php-redis-framework - Development preview - Very simple to add custom commands
108. Redis framework 108 clue/php-redis-framework - Development preview - Very simple to add custom commands - run example server $ php examples/03-beer.php - connect via telnet: $ telnet IP 9000
109. UPnP clue/ssdp-react - Univeral Plug and Play (UPnP) - Simple Service Discovery Protocol (SSDP) - dicover UPnP-enabled devices - printers - routers - multi media devices 109
110. UPnP clue/ssdp-react - Univeral Plug and Play (UPnP) - Simple Service Discovery Protocol (SSDP) - dicover UPnP-enabled devices - printers - routers - multi media devices 110 - see its examples $ php examples/search.php
111. Zenity clue/zenity-react - PHP desktop GUI applications - very simple, Promise-based 111
112. Zenity clue/zenity-react - PHP desktop GUI applications - very simple, Promise-based 112 - see its simple examples $ php examples/dialog.php - see its more realistic examples $ php examples/menu.php $ php examples/progress-*.php
113. many, MANY more third-party projects: https://github.com/reactphp/react/wiki/Users 113
114. Conclusions 114
115. Conclusions 115 - React is a real deal and here to stay - React is stable and production ready - predictable releases - but possibly feature-incomplete (check open issues)
116. Conclusions 116 - React is a real deal and here to stay - React is stable and production ready - predictable releases - but possibly feature-incomplete (check open issues) - React does not make your code faster magically
117. Conclusions 117 - React is a real deal and here to stay - React is stable and production ready - predictable releases - but possibly feature-incomplete (check open issues) - React does not make your code faster magically - Consider using React whenever you’re having to wait - Consider using React whenever you’re accessing the network
118. PHP is faster than you probably thought 118
119. PHP is more versatile than you probably thought 119
120. Integration with traditional environments 120 integrating async into sync is easy
121. Integration with traditional environments 121 integrating async into sync is easy - just run the loop until you’re done - see clue/block-react
122. Integration with traditional environments 122 integrating async into sync is easy - just run the loop until you’re done - see clue/block-react integrating sync into async is hard
123. Integration with traditional environments 123 integrating async into sync is easy - just run the loop until you’re done - see clue/block-react integrating sync into async is hard - often requires async rewrite - consider forking instead
124. Need help? Want to help? - check each component’s README - check open issues 124
125. Need help? Want to help? - check each component’s README - check open issues - join #reactphp on irc.freenode.org - tweet @ReactPHP or #reactphp 125
126. Need help? Want to help? - check each component’s README - check open issues - join #reactphp on irc.freenode.org - tweet @ReactPHP or #reactphp - Talk to me 126
127. Need help? Want to help? - check each component’s README - check open issues - join #reactphp on irc.freenode.org - tweet @ReactPHP or #reactphp - Talk to me Did I mention I’m available? 127
128. // thank you! $loop->stop(); 128 @another_clue – https://lueck.tv/