foreach($dtp->CTags as $ctag)  {     if($ctag->GetName()=="img")     {         if($i==($npos-1)) $preSrc = trim($ctag->GetInnerText());         if($i==($npos+1)) $nextSrc = trim($ctag->GetInnerText());         $i++;     }  } 核心代碼就在這里了，一個foreach循環，自然要修改這里了，修改后如下：    foreach($dtp->CTags as $ctag)  {     if($ctag->GetName()=="img")     {         if($i==($npos-1)) $preSrc = trim($ctag->GetInnerText());         if($i==($npos+1)) $nextSrc = trim($ctag->GetInnerText());        if($i==$npos) $text = $ctag->GetAtt('text');         $i++;     }  }