PHP 7 is a major new version of the PHP scripting language released in 2015. Some of the new features in PHP 7 include the null coalesce operator (??), spaceship operator (<=>), type declarations, anonymous classes, and group use declarations. PHP 7 also deprecated some old features and changed the behavior of some language constructs for better performance and compatibility.
PHP7 - The New Engine for old good trainXinchen Hui
PHP 7 provides major performance improvements over previous versions through a refactored engine. It focuses on optimizing core functions and data structures like ZVAL and HashTable to reduce CPU and memory overhead. Some key optimizations include using an Abstract Syntax Tree, improving integer handling, making function calls more efficient, and enhancing the memory manager. Benchmark tests show PHP 7 can be over 5 times faster than PHP 5 for simple tests and around 2 times faster for real-world applications like WordPress. The goal is to achieve a new level of PHP performance while maintaining 100% compatibility.
This document summarizes a presentation given on why to choose Hack/HHVM over PHP7. Some key points made include:
1. Hack provides more powerful type hinting capabilities compared to PHP7, including support for nullable and mixed types.
2. Hack features original collections like Vector, Map, Set and Pair that allow specifying value types, unlike PHP arrays.
3. Hack has original language specifications like lambdas, generics, and enums not in PHP7.
4. Hack allows parallel execution out of the box for higher performance.
5. Hack's static analysis tool catches errors before runtime for more bug-free code.
6. HHVM continues to incorporate features from PHP
PHP 7 is a major new version of the PHP scripting language released in 2015. Some of the new features in PHP 7 include the null coalesce operator (??), spaceship operator (<=>), type declarations, anonymous classes, and group use declarations. PHP 7 also deprecated some old features and changed the behavior of some language constructs for better performance and compatibility.
PHP7 - The New Engine for old good trainXinchen Hui
PHP 7 provides major performance improvements over previous versions through a refactored engine. It focuses on optimizing core functions and data structures like ZVAL and HashTable to reduce CPU and memory overhead. Some key optimizations include using an Abstract Syntax Tree, improving integer handling, making function calls more efficient, and enhancing the memory manager. Benchmark tests show PHP 7 can be over 5 times faster than PHP 5 for simple tests and around 2 times faster for real-world applications like WordPress. The goal is to achieve a new level of PHP performance while maintaining 100% compatibility.
This document summarizes a presentation given on why to choose Hack/HHVM over PHP7. Some key points made include:
1. Hack provides more powerful type hinting capabilities compared to PHP7, including support for nullable and mixed types.
2. Hack features original collections like Vector, Map, Set and Pair that allow specifying value types, unlike PHP arrays.
3. Hack has original language specifications like lambdas, generics, and enums not in PHP7.
4. Hack allows parallel execution out of the box for higher performance.
5. Hack's static analysis tool catches errors before runtime for more bug-free code.
6. HHVM continues to incorporate features from PHP
Presentation delivered by Marcia Lei Zeng 曾蕾 at Linked Open Data @ AIMS Webinars.
http://aims.fao.org/linked-open-data-webinars-at-aims/marcia-zeng
http://aims.fao.org/linked-open-data-webinars-at-aims/marcia-zeng/eng
Presentation delivered by Marcia Lei Zeng 曾蕾 at Linked Open Data @ AIMS Webinars.
http://aims.fao.org/linked-open-data-webinars-at-aims/marcia-zeng
http://aims.fao.org/linked-open-data-webinars-at-aims/marcia-zeng/eng