ThinkPHP的擷取字串函式無法顯示省略號的解決方法
阿新 • • 發佈:2019-02-16
對於ThinkPHP的擷取字串函式無法顯示省略號的情況,解決方法如下:
開啟Common/extend.php頁面,修改msubstr函式如下:
效果可以看下具體51搜尋展示http://www.51bt.cc,結合Xunsearch全文檢索技術,可以達到毫秒級的資料搜尋
function msubstr($str, $start=0, $length, $charset="utf-8", $suffix=true)
{
if(function_exists("mb_substr")) {
if($suffix)
{
if($str==mb_substr($str, $start, $length, $charset))
{
return mb_substr($str, $start, $length, $charset);
}
else
{
return mb_substr($str, $start, $length, $charset)."...";
}
}
else
{
return mb_substr($str, $start, $length, $charset);
}
}
elseif(function_exists('iconv_substr')) {
if($suffix)
{
if($str==iconv_substr($str,$start,$length,$charset))
{
return iconv_substr($str,$start,$length,$charset);
}
else
{
return iconv_substr($str,$start,$length,$charset)."...";
}
}
else
{
return iconv_substr($str,$start,$length,$charset);
}
}
$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) return $slice."…";
return $slice;
開啟Common/extend.php頁面,修改msubstr函式如下:
效果可以看下具體51搜尋展示http://www.51bt.cc,結合Xunsearch全文檢索技術,可以達到毫秒級的資料搜尋
function msubstr($str, $start=0, $length, $charset="utf-8", $suffix=true)
{
if(function_exists("mb_substr")) {
if($suffix)
{
if($str==mb_substr($str, $start, $length, $charset))
{
return mb_substr($str, $start, $length, $charset);
}
else
{
return mb_substr($str, $start, $length, $charset)."...";
}
}
else
{
return mb_substr($str, $start, $length, $charset);
}
}
elseif(function_exists('iconv_substr')) {
if($suffix)
{
if($str==iconv_substr($str,$start,$length,$charset))
{
return iconv_substr($str,$start,$length,$charset);
}
else
{
return iconv_substr($str,$start,$length,$charset)."...";
}
}
else
{
return iconv_substr($str,$start,$length,$charset);
}
}
$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) return $slice."…";
return $slice;