PHP 6 will not, did not master

Funny, but did not find in Habré mention of this, even in the comments. It's time to eliminate this disadvantage, because many people use only Habr as a source of information.



So PHP 6 will not, in general. On March 11, 2010, the development team decided to cancel the release of PHP 6 in its current form. As a result, the trunk with PHP 6 was moved to the brunch, and a new version was formed in the trunk - 5.4, in which developers transferred all the developments from PHP 6, except for unicode.



Below is a brief retelling of the presentation (pdf) made by Andrei Zmievski at the PHP Community Conference in 2011.



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But first, consider how Unicode is supported now.

• In the source code:
  • , [a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*. : function (){}
  • UTF-8 BOM, , . HTML- , PHP- PHP- ?>
• :
  • , UTF-8, , .
    
    
  • xml UTF-8 ISO-8859-1 , .
    
    
  • mbstring (Multibyte String), , . .

? mbstring, .

, , . , php-, , , , , . , mbstring .



:







, .

• UTF-8 — : ASCII, , , .
• UTF-16 — : ICU, .
• UTF-32 — : .

, UTF-16 - ICU. , , , , UTF-8, .

-: , ICU.

-: .

-: .

PHP- , , .

mbstring . , . PHP .

• — .
• — .
• , — .
• (stay committed).