PHP 6: The Upcoming Version and How It Affects PHP Development
The goal of the ambitious PHP 6 project was to implement Unicode natively. However, the work was shelved because of practical and technological difficulties. Rather, some of the planned PHP 6 features, such as characteristics, binary notation, array dereferencing, an integrated web server, and enhanced closures were carried over into PHP 5.4.
PHP 7, which offered greater memory management and speed enhancements, became the next major version as PHP 6 was never formally released. Developers can better understand PHP 6's progress by knowing its history.
PHP 6 was not released. Following PHP 5.3, PHP 6 was developed with the goal of implementing native Unicode support. However, PHP 6 development was shelved due to a number of practical and technical issues, and PHP 7 was the subsequent major release of the language.
Features like characteristics, binary notation for numbers, array dereferencing support, an integrated web server, enhanced closures, and more were added to PHP 5.4 instead of PHP 6.
In conclusion, PHP 5.4 incorporates some of the capabilities of PHP 6, a planned major release that was never released because of problems with its development process. PHP 7 was the next significant release following PHP 5.
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