PHP7 New Features

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1. PHP7 New Features Ulugbek Miniyarov Software Architect @ ENUYGUN
2. Migrating from PHP 5.6.x to PHP 7.0.x • Backward incompatible changes • New features • Deprecated features in PHP 7.0.x • Changed functions • New functions • New Classes and Interfaces • New Global Constants • Changes in SAPI Modules • Removed Extensions and SAPIs • Other Changes Check out full list at: http://php.net/manual/en/migration70.php
3. What about PHP6? • Development started in 2005 • Abandoned in 2010 • Main cause for discontinuation: Unicode support by default • Other features were introduced in PHP 5.3 RFC about naming PHP7 rather than PHP6: https://wiki.php.net/rfc/php6
4. Backward incompatibility changes PHP5: Exceptions can’t catch Fatal errors PHP7: Catchable Fatal errors
5. PHP7 Error Hierarchy • Throwable ◦ Error ▪ Arithmetic Error • DivisionByZeroError ▪ AssertionError ▪ ParseError ▪ TypeError ◦ Exception ▪ RuntimeException ▪ OutOfBoundException
6. Correct set_exception_handler handling
7. Other BC Breaks • Variable handling • list() handling • global only accepts simple variables • … Check out full list of BC Breaks at: http://php.net/manual/en/migration70.incompatible.php
8. New Feature: Scalar type declarations Scalar types: string, integer, float, boolean Note: To force check, enable with declare(strict_types=1)
9. New Feature: Return type declarations
10. New Feature: Null Coalescing Operator
11. New Feature: Spaceship Operator
12. New Feature: Anonymous Class
13. Other New Features: • Constant arrays using define() • Unicode codepoint escape syntax • Closure::call() • Filtered unserialize() • … Check out full list of New Features at: http://php.net/manual/en/migration70.new-features.php
14. Migrating from PHP 7.0.x to PHP 7.1.x • New features • New functions • New global constants • Backward incompatible changes • Deprecated features in PHP 7.1.x • Changed functions • Other changes • Windows Support Check out full list at: http://php.net/manual/en/migration71.php
15. PHP7.1 New Feature: Nullable Types
16. PHP7.1 New Feature: Void Functions
17. PHP7.1 New Feature: Class Constant Visibility
18. PHP7.1 New Feature: Iterable pseudo-type
19. PHP7.1 New Feature: Multi-catch Exceptions
20. PHP7.1 Other New Features: • Symmetric array deconstructing • Support for keys in list() • Support for negative string offsets • Asynchronous signal handling • … Check out full list for PHP7.1 New Features at: http://php.net/manual/en/migration71.new-features.php
21. PHP 7 Internals Internal value representation - Part 1: https://nikic.github.io/2015/05/05/Internal-value-representation-in-PHP-7-part- 1.html Internal value representation - Part 2: https://nikic.github.io/2015/06/19/Internal-value-representation-in-PHP-7-part- 2.html
22. PHP5 vs PHP7 Performance at ENUYGUN
23. PHP5 vs PHP7 Performance at ENUYGUN
24. PHP5 vs PHP7 Performance at ENUYGUN
25. Thank you!