Is the title too long to be truncated? How to separate the full and half corners to avoid garbled characters _ PHP-php Tutorial

Author: lemann (lemann) functionChgTitle ($ title) {$ length46; if (strlen ($ title) $ length) {$ temp0; for ($ i0; $ I $ length; $ I ++) if (ord ($ title [$ I]) 128) $ temp ++; if ($ temp % 20) $ titlesubstr ($ title author: lemann (lemann)

Function ChgTitle ($ title)

{



$ Length = 46;

If (strlen ($ title)> $ length ){

$ Temp = 0;

For ($ I = 0; $ I <$ length; $ I ++)

If (ord ($ title [$ I])> 128)

$ Temp ++;

If ($ temp % 2 = 0)

$ Title = substr ($ title, 0, $ length )."...";

Else

$ Title = substr ($ title, 0, $ length + 1 )."...";

}

Return $ title;

}



The principle is to truncation a character to see if its ascII code is greater than 128. If yes, it indicates that the truncation is a full-angle Chinese character, then a truncation is taken back. Use $ length to control the length



Note: cyclically Judge> 128 in a string

The number of characters. if The halfwidth character is an even number, it indicates that the position is exactly the whole Chinese character. if it is an odd number, it is half a Chinese character and the next word is required.