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
| 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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复制代码
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/**
---------------------------------------------------------- |
* 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);}
