$string1 = "你是我的上帝上帝上帝上帝上帝"; function cut_str($string, $sublen, $start = 0, $charset = 'UTF-8') { if ($charset == '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, $sublen)) . "..."; return join('', array_slice($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.= "..."; return $tmpstr; } } echo cut_str($string1, 10);
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