一款不错的支持中文和其它编码截取函数，不会出现乱码情况，有需要的朋友可以参考一下。
| 代码如下 | 复制代码 |
| /** +---------------------------------------------------------- * 字符串截取，支持中文和其它编码 +---------------------------------------------------------- * @param string $str 需要转换的字符串 * @param string $start 开始位置 * @param string $length 截取长度 * @param string $charset 编码格式 * @param string $suffix 截断显示字符 +---------------------------------------------------------- * @return string +---------------------------------------------------------- */ function msubstr($str, $start=0, $length, $charset="utf-8", $suffix=true) { if(function_exists("mb_substr")) $slice = mb_substr($str, $start, $length, $charset); elseif(function_exists('iconv_substr')) { $slice = iconv_substr($str,$start,$length,$charset); }else{ $re['utf-8'] = "/[x01-x7f]|[xc2-xdf][x80-xbf]|[xe0-xef][x80-xbf]{2}|[xf0-xff][x80-xbf]{3}/"; $re['gb2312'] = "/[x01-x7f]|[xb0-xf7][xa0-xfe]/"; $re['gbk'] = "/[x01-x7f]|[x81-xfe][x40-xfe]/"; $re['big5'] = "/[x01-x7f]|[x81-xfe]([x40-x7e]|xa1-xfe])/"; preg_match_all($re[$charset], $str, $match); $slice = join("",array_slice($match[0], $start, $length)); } if($suffix && $str != $slice) return $slice."..."; return $slice; } /** +---------------------------------------------------------- * 字符串截取，支持中文和其它编码 +---------------------------------------------------------- * @param string $str 需要转换的字符串 * @param string $length 截取长度 * @param string $charset 编码格式 * @param string $suffix 截断显示字符 +---------------------------------------------------------- * @return string +---------------------------------------------------------- */ function mStr($str, $length, $charset="utf-8", $suffix=true){ return msubstr($str, 0, $length, $charset, $suffix); } |
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