百度收录查询源代码

function baidu_check($url) {
    global $wpdb;
    $post_id = (null === $post_id) ? get_the_ID() : $post_id;
    $baidu_record = get_post_meta($post_id, 'baidu_record', true);
    if ($baidu_record != 1) {
        $url = 'http://www.baidu.com/s?wd=' . $url;
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        $rs = curl_exec($curl);
        curl_close($curl);
        if (!strpos($rs, '没有找到')) {
            if ($baidu_record == 0) {
                update_post_meta($post_id, 'baidu_record', 1);
            } else {
                add_post_meta($post_id, 'baidu_record', 1, true);
            }
            return 1;
        } else {
            if ($baidu_record == false) {
                add_post_meta($post_id, 'baidu_record', 0, true);
            }
            return 0;
        }
    } else {
        return 1;
    }
}