php公用函数：获取字符串中英文混合长度

//获取字符串中英文混合长度function get_strlen($str, $charset = 'utf-8'){if ($charset == 'utf-8') $str = iconv('utf-8', 'gb2312', $str);$num = strlen($str);$cnNum = 0;for ($i = 0; $i < $num; $i++) {if (ord(substr($str, $i + 1, 1)) > 127) {$cnNum++;$i++;}}$enNum = $num - ($cnNum * 2);return $cnNum * 2 + $enNum;}

Done !