php - curl 下载网页与符号错误

Question

我正在尝试下载网页，例如:

http://www.site.com/savings/thispage?OneId=88&SecondId=185

CURL 在此页面上失败；我怀疑是因为与号。如何转义这个 & 以允许下载完成？

错误是 Unable to resolve host

Answer 1

看看: url_encode(); 和 rawurlencode(); .

Returns a string in which all non-alphanumeric characters except -_. have been replaced with a percent (%) sign followed by two hex digits and spaces encoded as plus (+) signs. It is encoded the same way that the posted data from a WWW form is encoded, that is the same way as in application/x-www-form-urlencoded media type. This differs from the » RFC 3986 encoding (see rawurlencode()) in that for historical reasons, spaces are encoded as plus (+) signs.

更新 : 因为错误是 Unable to resolve host ，请确保您的 /etc/resolv.conf文件的权限为 0644 .这将确保安全并允许 Apache/PHP 读取和解析主机名。

您可以通过调用 gethostbyname(); 来检查 PHP 和 Apache 是否可以访问 DNS 服务。