Home  >  Article  >  Backend Development  >  Use PHP to intercept specified length_PHP tutorial

Use PHP to intercept specified length_PHP tutorial

WBOY
WBOYOriginal
2016-07-21 14:59:16892browse

PHP language: Cut string according to Chinese

Copy code The code is as follows:

function cutstr($string,$length, $ dot = ' ...') {
if (strlen($string) <= $length) {
return$string;
}
$pre = chr(1);
$end = chr(1);
$string = str_replace(array('&','"', '<', '>'),array($pre . '&'. $end, $pre . '"' . $end, $pre . '<' .$end, $pre . '>' . $end), $string);

$strcut = '';
if (strtolower(CHARSET) == 'utf-8'){
$n = $tn =$noc = 0;
while ($n< strlen($string)) {

                                                                                                                                               
$tn = 1;
$n++;
$noc++;
} elseif (194 <= $t&& $t <= 223) {
$tn = 2;
              $n += 2;                                                     $n + = 3;
                          $noc += 2;                                                                                                                                                           ​​​          $noc += 2;
} elseif ($t == 252 || $t ==253) {
                $tn = 6;
                                                                                                                                                                  }
}
if ($noc> $length) {
                                                                                                                                 $i =0; $i < $length; $i++) {
             $strcut .= ord($string[$i])> 127 ? $string[$i] . $string[++$i ] : $string[$i];
}
}
$strcut = str_replace(array($pre . '&' .$end, $pre . '"' . $end, $pre . '<' . $end, $pre . '>' .$end), array('&', '"','<', '>'), $strcut);

$pos = strrpos($strcut, chr(1));
if ($pos !== false) {
$strcut =substr($strcut, 0, $pos);
}
return $strcut . $dot;
}





http://www.bkjia.com/PHPjc/328152.html

www.bkjia.com

true

http: //www.bkjia.com/PHPjc/328152.html

TechArticle

PHP language: Copy the code according to the Chinese cut string. The code is as follows: function cutstr($string,$length, $dot = ' ...') { if (strlen($string) = $length) { return$string; } $pre = chr(1);...





Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn