public static function http_client($url, $method = 'GET', $fields)
{
$method = strtoupper($method);
if (!self::_is_url($url)) {
self::$error = "You have requested URL ({$url}) is not a valid HTTP address";
return false;
}
// 如果是 get 方式，直接拼凑一个 url 出来
if ($method == 'GET' && !empty($fields)) {
$url = $url . (strpos($url, "?") === false ? "?" : "&") . http_build_query($fields);
}
$parse_url = parse_url($url);
if (empty($parse_url) || empty($parse_url['host']) || !in_array($parse_url['scheme'], array('http', 'https'))) {
self::$error = "No connection adapters were found for '{$url}'";
return false;
}
$scheme = $parse_url['scheme'];
$domain = $parse_url['host'];
// 随机绑定 hosts，做负载均衡
//if (self::$hosts)
//{
//$host = $parse_url['host'];
//$key = rand(0, count(self::$hosts)-1);
//$ip = self::$hosts[$key];
//$url = str_replace($host, $ip, $url);
//self::$headers['Host'] = $host;
//}
curl_setopt(self::$ch, CURLOPT_URL, $url);
if ($method != 'GET') {
// 如果是 post 方式
if ($method == 'POST') {
curl_setopt(self::$ch, CURLOPT_POST, true);
} else {
self::$headers['X-HTTP-Method-Override'] = $method;
curl_setopt(self::$ch, CURLOPT_CUSTOMREQUEST, $method);
}
curl_setopt(self::$ch, CURLOPT_POSTFIELDS, $fields);
}
$cookies = self::get_cookies();
$domain_cookies = self::get_cookies($domain);
$cookies = array_merge($cookies, $domain_cookies);
// 是否设置了cookie
if (!empty($cookies)) {
foreach ($cookies as $key => $value) {
$cookie_arr[] = $key . "=" . $value;
}
$cookies = implode("; ", $cookie_arr);
curl_setopt(self::$ch, CURLOPT_COOKIE, $cookies);
}
if (self::$headers) {
$headers = array();
foreach (self::$headers as $k => $v) {
$headers[] = $k . ": " . $v;
}
curl_setopt(self::$ch, CURLOPT_HTTPHEADER, $headers);
}
curl_setopt(self::$ch, CURLOPT_ENCODING, 'gzip');
if (self::$proxies) {
if (!empty(self::$proxies[$scheme])) {
curl_setopt(self::$ch, CURLOPT_PROXY, self::$proxies[$scheme]);
}
}
// header + body，header 里面有 cookie
curl_setopt(self::$ch, CURLOPT_HEADER, true);
self::$raw = curl_exec(self::$ch);
//var_dump($data);
self::$info = curl_getinfo(self::$ch);
self::$status_code = self::$info['http_code'];
if (self::$raw === false) {
self::$error = ' Curl error: ' . curl_error(self::$ch);
}
// 关闭句柄
curl_close(self::$ch);
// 请求成功之后才把URL存起来
self::$url = $url;
self::$content = self::get_response_body($domain);
//$data = substr($data, 10);
//$data = gzinflate($data);
return self::$content;
}