PHP

PHP6 A HUGE IMPROVEMENT

PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML to produce dynamic web pages. PHP users should note that the PHP 5.2 series is NOT supported anymore. All users are strongly encouraged to upgrade to PHP 5.3.7. PHP supports all major databases, among them MySQL is the best in my humble opinion.
PHP is interpreted by a web server with a PHP processor module, which generates the web page document . It also has evolved to include a command-line interface capability and can be used in standalone graphical applications. PHP is installed on more than 20 million websites and 1 million web servers.

PHP TUTORIALS BY SHAHED RAJA

FUTURE & GOAL OF PHP

When the foundation of what should have become PHP 6 was created a decision was made to use UTF-16 as internal encoding for "everything" inside the engine. The choice for UTF-16 was made due to the fact that PHP 6 would use the ICU library which is focused on offering UTF-16 string functions. By using UTF-16 as default encoding we'd have to convert the script code and all data passed from or to the script (request data, database results, output, ...) from another encoding, usually UTF-8, to UTF-16 or back. The need for conversion doesn't only require CPU time and more memory (a UTF-16 string takes double memory of a UTF-8 string in many cases) but makes the implementation rather complex as we always have to figure out which encoding was the right one for a given situation. From the userspace point of view the implementation brought some backwards compatibility breaks which would require manual review of the code. These all are pains for a very small gain for many users where many would be happy about a tighter integration of some mbstring-like functionality. This all led to a situation for many contributors not willing to use "trunk" as their main development tree but either develop using the stable 5.2/5.3 trees or refuse to do development at all.

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