Flash初哥

January 28, 2010

Pat flash img preloader

Filed under: Flash技術文章 — Tags: — KAV @ 8:10 pm

http://www.republicofcode.com/tutorials/flash/moviecliploader/

[轉]UTF-16 轉碼至 UTF-8

Filed under: PHP — Tags: — KAV @ 3:10 am
?View Code PHP
function utf162utf8($utf16)
{
  // oh please oh please oh please oh please oh please
 if(function_exists('mb_convert_encoding')) {
	  return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16');
   }
 
   $bytes = (ord($utf16{0}) << 8) | ord($utf16{1});
 
   switch(true) {
	   case ((0x7F & $bytes) == $bytes):
		   // this case should never be reached, because we are in ASCII range
		   // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
		   return chr(0x7F & $bytes);
 
	   case (0x07FF & $bytes) == $bytes:
		   // return a 2-byte UTF-8 character
		   // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
		   return chr(0xC0 | (($bytes >> 6) & 0x1F))
			   . chr(0x80 | ($bytes & 0x3F));
 
	   case (0xFFFF & $bytes) == $bytes:
		   // return a 3-byte UTF-8 character
		   // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
		   return chr(0xE0 | (($bytes >> 12) & 0x0F))
			   . chr(0x80 | (($bytes >> 6) & 0x3F))
			   . chr(0x80 | ($bytes & 0x3F));
   }
// ignoring UTF-32 for now, sorry
   return '';
}

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