复制代码 代码如下:
function Cut_string($string, $start ,$sublen, $extstring=’…’, $code = ‘UTF-8’) {//Cut_string开始
if($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)<$str本2文来*源gao($daima.com搞@代@#码(网搞gaodaima代码len ) $tmpstr.= $extstring;
return $tmpstr;
}
} //Cut_string结束
转载请注明原文链接：PHP 字符截取 解决中文的截取问题,不用mb系列_PHP
