In short, story behind PHP 7
When PHP 6 was released back in 2005, it came forward in public space as the logic future descendant of the PHP 5.x series.
By offering an alternative encoding approach where Unicode is brought into the PHP core engine, PHP 6 promised to change the coding landscape for good. However, that approach could not stand the real-world tests due to the excessive use of CPU and memory resources, which made PHP 6 too complex and resource-consuming to put into practice.
http://gopickhost.blogspot.in/2016/01/the-story-behind-php-7.html
http://www.gopickhost.com
When PHP 6 was released back in 2005, it came forward in public space as the logic future descendant of the PHP 5.x series.
By offering an alternative encoding approach where Unicode is brought into the PHP core engine, PHP 6 promised to change the coding landscape for good. However, that approach could not stand the real-world tests due to the excessive use of CPU and memory resources, which made PHP 6 too complex and resource-consuming to put into practice.
http://gopickhost.blogspot.in/2016/01/the-story-behind-php-7.html
http://www.gopickhost.com