Php Chinese and English string truncation functions (including html)

The Chinese and English string truncation function (including html) in php is provided here to support the intercept of Chinese characters and English characters, including html tags, let's take a look at this screenshot function.

The sample code is as follows:

Function get_word ($ string, $ length, $ dot = '..', $ charset = 'gbk '){

If (strlen ($ string) <= $ length ){

Return $ string;

}

$ String = str_replace (array ('','', '&', '"', '<', '>'), array ('','', '&', '"', '<', '>'), $ string );

$ Strcut = '';

If (strtolower ($ charset) = 'utf-8 '){

$ N = $ tn = $ noc = 0;

While ($ n <strlen ($ string )){

$ T = ord ($ string [$ n]);

If ($ t = 9 | $ t = 10 | (32 <= $ t & $ t <= 126 )){

$ Tn = 1; $ n ++; $ noc ++;

} Elseif (194 <=$ t & $ t <= 223 ){

$ Tn = 2; $ n + = 2; $ noc + = 2;

} Elseif (224 <=$ t & $ t <239 ){

$ Tn = 3; $ n + = 3; $ noc + = 2;

} Elseif (240 <=$ t & $ t <= 247 ){

$ Tn = 4; $ n + = 4; $ noc + = 2;

} Elseif (248 <=$ t & $ t <= 251 ){

$ Tn = 5; $ n + = 5; $ noc + = 2;

} Elseif ($ t = 252 | $ t = 253 ){

$ Tn = 6; $ n + = 6; $ noc + = 2;

} Else {

$ N ++;

}

If ($ noc >=$ length ){

Break;

}

}

If ($ noc> $ length ){

$ N-= $ tn;

}

$ Strcut = substr ($ string, 0, $ n );

} Else {

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

$ Strcut. = ord ($ string [$ I]) & gt; 127? $ String [$ I]. $ string [++ $ I]: $ string [$ I];

}

}

Return $ strcut. $ dot;

}

$ Str = "welcome to visit concise nowamagic ";

$ Str_result = get_word ($ str, 12 );

Echo $ str_result;