public static function getResourceByTemp($html)
    {
        $attr       = ['title', 'alt', 'placeholder'];//指定html属性上的文本
        $getAttrArr = [];
        foreach ($attr as $k => $v) {
            preg_match_all("/{$v}=\"(.*?)\"/", $html, $get);
            if (!empty($get['1'])) {
                $getAttrArr = array_unique(array_merge($getAttrArr, $get['1']));
            }
        }
        $html      = preg_replace("/<!--.*?-->/is", '', $html); //删除注释
        $html      = preg_replace("/<style.*?>.*?<\/style>/is", '', $html); //删除style标签
        $html      = preg_replace("/<script.*?>.*?<\/script>/is", '', $html); //删除js标签
        $separator = '::#::myself::#::'; //自己设定的，特有的分隔符
        $html      = preg_replace("/<.*?>/is", $separator, $html);
        $arr       = array_filter(explode($separator, $html));
        if (!empty($getAttrArr)) {
            $arr = array_filter(array_unique(array_merge($arr, $getAttrArr)));
        }
        $array     = [];
        foreach ($arr as $k => $v) {
            $v = trim($v);
            if (!empty($v)) {
                if (strpos(PHP_EOL, $v)) {
                    //有些字符里面会还有换行，再分析一次并去掉字符前后的空格。
                    $tmp = explode(PHP_EOL, $v);
                    foreach ($tmp as $val) {
                        $val = trim($val);
                        if (!empty($val)) {
                            $array[] = $val;
                        }
                    }
                } else {
                    //如果没有换行，直接赋值
                    $array[] = $v;
                }
            }
        }
        foreach ($array as $k => $v) {
            //去掉纯数字的元素
            if (is_numeric($v)) {
                unset($array[$k]);
            }
            //去掉纯符号的元素
            $pregStr = preg_replace("/[\x{4e00}-\x{9fa5}A-Za-z0-9]/u", '', $v);
            if ($v == $pregStr) {
                unset($array[$k]);
            }
            //去掉类似&#xe61b;这种图标字符
            if (strpos($v, '&#x') !== false && (strlen($v) == 7 || strlen($v) == 8)) {
                unset($array[$k]);
            }
        }
        $result = [];
        $array  = array_unique($array);
        foreach ($array as $v) {
            $result[] = ['text' => trim($v), 'len' => mb_strlen($v)];
        }
        array_multisort(array_column($result, 'len'), SORT_DESC, $result); //按字符长度倒序
        return $result;
    }

//获取页面的title,keyword,description
public static function get_sitemeta($data)
    {
        if (self::isUrl($data)) {
            $data = file_get_contents($url);
        }

        $meta = array();
        if (!empty($data)) {
            #Title
            preg_match('/<TITLE>([\w\W]*?)<\/TITLE>/si', $data, $matches);
            if (!empty($matches[1])) {
                $meta['title'] = $matches[1];
            }

            #Keywords
            preg_match('/<META\s+name="keywords"\s+content="([\w\W]*?)"/si', $data, $matches);
            if (empty($matches[1])) {
                preg_match("/<META\s+name='keywords'\s+content='([\w\W]*?)'/si", $data, $matches);
            }
            if (empty($matches[1])) {
                preg_match('/<META\s+content="([\w\W]*?)"\s+name="keywords"/si', $data, $matches);
            }
            if (empty($matches[1])) {
                preg_match('/<META\s+http-equiv="keywords"\s+content="([\w\W]*?)"/si', $data, $matches);
            }
            if (!empty($matches[1])) {
                $meta['keywords'] = $matches[1];
            }

            #Description
            preg_match('/<META\s+name="description"\s+content="([\w\W]*?)"/si', $data, $matches);
            if (empty($matches[1])) {
                preg_match("/<META\s+name='description'\s+content='([\w\W]*?)'/si", $data, $matches);
            }
            if (empty($matches[1])) {
                preg_match('/<META\s+content="([\w\W]*?)"\s+name="description"/si', $data, $matches);
            }
            if (empty($matches[1])) {
                preg_match('/<META\s+http-equiv="description"\s+content="([\w\W]*?)"/si', $data, $matches);
            }
            if (!empty($matches[1])) {
                $meta['description'] = $matches[1];
            }
        }
        return $meta;
    }