PHP character truncation solves the problem of Chinese character truncation without using the mb series

: PHP character truncation solves the problem of Chinese character truncation without using the mb series: Copy the code as follows: functionCut_string ($ string, $ start, $ sublen, $ extstring ..., $ codeUTF-8) {Cut_string start if ($ codeUTF-8) {$ pa // character truncation to solve Chinese truncation problems

The code is as follows:

Function Cut_string ($ string, $ start, $ sublen, $ extstring = '... ', $ code = 'utf-8') {// starting with Cut_string if ($ code = 'utf-8 ') {$ pa = "/[\ x01-\ x7f] | [\ xc2-\ xdf] [\ x80-\ xbf] | \ xe0 [\ xa0-\ xbf] [\ x80-\ xbf] | [\ xe1-\ xef] [\ x80-\ xbf] [\ x80-\ xbf] | \ xf0 [\ x90-\ xbf] [\ x80 -\ xbf] [\ x80-\ xbf] | [\ xf1-\ xf7] [\ x80-\ xbf] [\ x80-\ xbf] [\ x80-\ xbf] /"; preg_match_all ($ pa, $ string, $ t_string); if (count ($ t_string [0])-$ start> $ sublen) return join ('', array_slice ($ t_string [0], $ start, $ sublen )). $ extstring; return join ('', array_slice ($ t_string [0], $ start, $ sublen);} else {$ start = $ start * 2; $ sublen = $ sublen * 2; $ strlen = strlen ($ string); $ tmpstr = ''; for ($ I = 0; $ I <$ strlen; $ I ++) {if ($ I >=$ start & $ I <($ start + $ sublen) {if (ord (substr ($ string, $ I, 1)> 129) {$ tmpstr. = substr ($ string, $ I, 2);} else {$ tmpstr. = substr ($ string, $ I, 1) ;}if (ord (substr ($ string, $ I, 1)> 129) $ I ++ ;} if (strlen ($ tmpstr) <$ strlen) $ tmpstr. = $ extstring; return $ tmpstr ;}// Cut_string ends

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