TDC SP 2015 - PHP7: better & faster
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Bruno Ricardo Siqueira's presentation covers the improvements in PHP 7, highlighting its new features such as unicode support, exceptions, and performance enhancements. Key focus areas include deprecations, removals, memory management, and better performance through reduced allocations and referencing. The talk also outlines future developments like JIT and improved static analysis tools.
TDC SP 2015 - PHP7: better & faster
- 1. Better & faster Bruno Ricardo Siqueira 2015
- 2. ABOUT THE SPEAKER Bruno Ricardo Siqueira. Web developer and PHP evangelist in Brazil. Docker enthusiast. Git heavy user. Working with Web Development for the last 8 years, Bachelor in Information Systems by University of Sao Paulo ICMC - USP, currently working at CI&T as Software Engineer.
- 3. AGENDA ● Warming-up ○ Contextualization ○ Deprecations ○ Removals & inconsistency reduction ● Looking inside ○ Memory ○ Performance ● New features ○ Unicode ○ Exception in the core ○ Anonymous classes ○ Operators ○ Declarations ○ Generators ● Near future & conclusions ● Questions
- 4. WARMING-UP
- 5. WARMING-UP - CONTEXTUALIZATION ● 2009 - PHP 5.3 ○ Namespaces ○ Anonymous functions ● 2009 - PHP-FIG ● 2010 - HipHop for PHP (HPHPc) ○ PHP -> C++ binary ● 2011 - HipHop Virtual Machine (HHVM) ○ JIT -> HipHop ByteCode ● 2012 - PHP 5.4 ○ Traits ○ Built in Webserver ● 2013 - PHP 5.5 ○ Generators ○ OpCache in the core ● 2014 - HACK Language ● 2014 - PHP 5.6 ○ Variadic Functions (...) ○ reusable php://input
- 11. PHP7 BETA2 24/07
- 12. ● PHP 4 constructors ● password_hash() option WARMING-UP - DEPRECATIONS
- 13. WARMING-UP - REMOVALS & INCONSISTENCY REDUCTION ● date.timezone warning: ○ default value ● alternative tags: ○ <% opening tag ○ <%= opening tag with echo ○ %> closing tag ○ (<scripts+languages*=s*(php|"php"|'php')s*>)i opening tag ○ (</script>)i closing tag ● multiple default blocks in switch constructions
- 14. WARMING-UP - REMOVALS & INCONSISTENCY REDUCTION ● SAPIs & extensions: ○ sapi/aolserver, sapi/apache, sapi/apache_hooks, sapi/apache2filter, sapi/caudium, sapi/continuity, sapi/isapi, sapi/milter, sapi/nsapi, sapi/phttpd, sapi/pi3web, sapi/roxen, sapi/thttpd, sapi/tux, sapi/webjames, ext/mssql, ext/mysql, ext/sybase_ct, ext/ereg ○ moved to PECL ● hexadecimals in numeric strings ● E_STRICT Notices
- 15. WARMING-UP - REMOVALS & INCONSISTENCY REDUCTION ● Uniform Variable Syntax
- 16. LOOKING INSIDE
- 18. LOOKING INSIDE - MEMORY
- 19. LOOKING INSIDE - PERFORMANCE ● ZVALs PHP 5.X ○ (almost) always heap allocated ○ reference counted & cycle colletcion ○ duplicated refcount (objects) ○ too much referencing, e. g.: 1 object in 1 variable -> 4 pointers ● ZVALs PHP 7 ○ simple values (int, bool…) without head allocation & without refcount ○ no more double refcount. ○ reusable values independent of zval structure
- 20. Smaller data structures. Less allocations. Less referencing. BETTER PERFORMANCE! LOOKING INSIDE - PERFORMANCE
- 24. NEW FEATURES
- 25. NEW FEATURES - UNICODE
- 26. NEW FEATURES - EXCEPTIONS IN THE CORE
- 27. NEW FEATURES - EXCEPTIONS IN THE CORE
- 28. NEW FEATURES - EXCEPTIONS IN THE CORE
- 29. NEW FEATURES - EXCEPTIONS IN THE CORE
- 30. NEW FEATURES - EXCEPTIONS IN THE CORE
- 31. NEW FEATURES - ANONYMOUS CLASSES
- 32. NEW FEATURES - OPERATORS spaceship operator <=>
- 33. NEW FEATURES - OPERATORS spaceship operator <=>
- 34. NEW FEATURES - OPERATORS spaceship operator <=>
- 35. NEW FEATURES - OPERATORS spaceship operator <=>
- 36. NEW FEATURES - OPERATORS spaceship operator <=>
- 37. NEW FEATURES - OPERATORS spaceship operator <=>
- 38. NEW FEATURES - OPERATORS spaceship operator <=>
- 39. NEW FEATURES - OPERATORS null coalesce operator ??
- 40. NEW FEATURES - OPERATORS null coalesce operator ??
- 41. NEW FEATURES - OPERATORS null coalesce operator ??
- 42. NEW FEATURES - OPERATORS null coalesce operator ??
- 43. NEW FEATURES - DECLARATIONS scalar types
- 44. NEW FEATURES - DECLARATIONS scalar types
- 45. NEW FEATURES - DECLARATIONS return types
- 46. NEW FEATURES - DECLARATIONS return types
- 47. NEW FEATURES - DECLARATIONS return types
- 48. NEW FEATURES - DECLARATIONS return types
- 49. NEW FEATURES - DECLARATIONS return types
- 50. NEW FEATURES - DECLARATIONS return types
- 51. NEW FEATURES - DECLARATIONS return types
- 52. NEW FEATURES - DECLARATIONS return types
- 53. NEW FEATURES - DECLARATIONS return types
- 54. NEW FEATURES - DECLARATIONS return types
- 55. NEW FEATURES - DECLARATIONS group use
- 56. NEW FEATURES - DECLARATIONS group use
- 57. NEW FEATURES - DECLARATIONS group use
- 58. NEW FEATURES - DECLARATIONS group use
- 59. NEW FEATURES - DECLARATIONS group use
- 60. NEW FEATURES - DECLARATIONS group use
- 61. NEW FEATURES - GENERATORS return expressions
- 62. NEW FEATURES - GENERATORS return expressions
- 63. NEW FEATURES - GENERATORS return expressions
- 64. NEW FEATURES - GENERATORS return expressions
- 65. NEW FEATURES - GENERATORS return expressions
- 66. NEW FEATURES - GENERATORS return expressions
- 67. NEW FEATURES - GENERATORS return expressions
- 68. NEW FEATURES - GENERATORS delegating generator
- 69. NEW FEATURES - GENERATORS delegating generator
- 70. NEW FEATURES - GENERATORS delegating generator
- 71. NEW FEATURES - GENERATORS delegating generator
- 72. NEW FEATURES - GENERATORS delegating generator
- 73. NEW FEATURES - GENERATORS delegating generator
- 74. NEW FEATURES - GENERATORS delegating generator
- 75. NEW FEATURES - GENERATORS delegating generator return expressions + delegating generator… Can you see the concurrency?
- 78. FUTURO PRÓXIMO
- 79. FUTURO PRÓXIMO ● PSR7 + Middleware pattern will boost even more the PHP packages reusability ● JIT + PHP Virtual Machine ● Language specification ● Better consistency ● AST will bring new/better static analysis tools ● ...
- 81. QUESTIONS?
- 82. THANKS FOR BEING HERE! PHP7: better & faster References: http://bit.ly/tdcsp-2015-php7 BRUNO RICARDO SIQUEIRA @brunoric https://joind.in/14853