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我创建了一个 php 脚本来从谷歌学者那里检索结果。

function getUserScholarPage($authorId){
$userUrl = "http://scholar.google.it/citations?hl=it&user=" . $authorId . "&view_op=list_works&pagesize=10000";
$html = file_get_html($userUrl);
$rows = $html->find('#gsc_a_b tr[class="gsc_a_tr"]');

return $rows;   

}

function getUserScholarBibliography( $rows ){
    $publications = array();


foreach( $rows as $row ){
    $citations = str_replace(' ', '', $row->find('td[class="gsc_a_c"] a', 0)->plaintext) != '' ? trim($row->find('td[class="gsc_a_c"] a', 0)->plaintext) : 0;

    $year = ($row->find('td[class="gsc_a_y"]', 0)->plaintext) ? trim($row->find('td[class="gsc_a_y"]', 0)->plaintext) : 0;
    $url  = getRealPaperURL('http://scholar.google.it' . $row->find('a[class="gsc_a_at"]',0)->href);
    $type = 'ARTICLE';
    $title = trim($row->find('a[class="gsc_a_at"]',0)->innertext);

    $publications[] = array(
        'type'    => $type,
        'title'   => $title,
        'authors' => trim($row->find('div[class="gs_gray"]',0)->innertext),
        'journal' => trim(preg_replace("'<span[^>]*?>.*?</span>'si", '', $row->find('div[class="gs_gray"]',1)->innertext)),
        'citations' => $citations,
        'year'      => $year,
        'url'       => $url,
        'unique_identifier' => hash('md5', $year . $url . $title)
    );
}

return $publications;

}

但是我在调​​用查询时遇到了问题。我收到一个错误:

警告:file_get_contents(http://scholar.google.it/citations?hl=it&user=XXXXXXX&view_op=list_works&pagesize=10000):打开流失败:HTTP 请求失败!HTTP/1.0 503 Service Unavailable in /var/www/html/scholar/simple_html_dom.php on line 78

-simple_html_dom.php 在第 78 行

https://github.com/samacs/simple_html_dom/blob/master/simple_html_dom.php

致命错误:在第 21 行的 /var/www/html/scholar/scholar-biblio-loader.php 中的非对象上调用成员函数 find()

-scholar-biblio-loader.php 第 21 行

$rows = $html->find('#gsc_a_b tr[class="gsc_a_tr"]');

如果我在 localhost 中运行脚本可以工作。如果我在我的服务器上运行脚本会给我错误

谷歌阻止了通话?问题是什么?

谢谢

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