curl http_code状态码 含义

curl爬取过程中，会返回一个http_code，下面是他们的意义信息
$http_code[""]="Unable to access";
$http_code[""]="Continue";
$http_code[""]="Switching Protocols";
$http_code[""]=”OK”;
$http_code[""]=”Created”;
$http_code[""]=”Accepted”;
$http_code[""]=”Non-Authoritative Information”;
$http_code[""]=”No Content”;
$http_code[""]=”Reset Content”;
$http_code[""]=”Partial Content”;
$http_code[""]=”Multiple Choices”;
$http_code[""]=”Moved Permanently”;
$http_code[""]=”Found”;
$http_code[""]=”See Other”;
$http_code[""]=”Not Modified”;
$http_code[""]=”Use Proxy”;
$http_code[""]=”(Unused)”;
$http_code[""]=”Temporary Redirect”;
$http_code[""]=”Bad Request”;
$http_code[""]=”Unauthorized”;
$http_code[""]=”Payment Required”;
$http_code[""]=”Forbidden”;
$http_code[""]=”Not Found”;
$http_code[""]=”Method Not Allowed”;
$http_code[""]=”Not Acceptable”;
$http_code[""]=”Proxy Authentication Required”;
$http_code[""]=”Request Timeout”;
$http_code[""]=”Conflict”;
$http_code[""]=”Gone”;
$http_code[""]=”Length Required”;
$http_code[""]=”Precondition Failed”;
$http_code[""]=”Request Entity Too Large”;
$http_code[""]=”Request-URI Too Long”;
$http_code[""]=”Unsupported Media Type”;
$http_code[""]=”Requested Range Not Satisfiable”;
$http_code[""]=”Expectation Failed”;
$http_code[""]=”Internal Server Error”;
$http_code[""]=”Not Implemented”;
$http_code[""]=”Bad Gateway”;
$http_code[""]=”Service Unavailable”;
$http_code[""]=”Gateway Timeout”;
$http_code[""]=”HTTP Version Not Supported”;