php 截取代码方法（140个字后的。）

//截取摘要public static function mbsubstr($str){    $strleng = mb_strlen($str,"utf8");    $mbstr = mb_substr($str,0,140,'utf8');    $strdstr = mb_substr($str,140,$strleng,'utf8');    $strlengs = mb_strlen($strdstr,'utf8');    $strc = "";    for($i=0;$i<$strlengs;$i++){        $strn = mb_substr($strdstr,$i,1,'utf8');        if($strn == "。" || $strn == "？" || $strn == "！"){            break;        }        $strc .= $strn;    }    $strd = $mbstr.$strc;    //echo $strleng."@".mb_strlen($strd,'utf8')."@".$strd."<br>";    return $strd;}

转载于:https://www.cnblogs.com/shaohuixia/p/5924392.html

相关资源：php截取html源代码的简单函数simplehtmldom