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- <?php
-
- namespace fast;
-
- /**
- * 字符串类
- */
- class Http
- {
-
- /**
- * 发送一个POST请求
- * @param string $url 请求URL
- * @param array $params 请求参数
- * @param array $options 扩展参数
- * @return mixed|string
- */
- public static function post($url, $params = [], $options = [])
- {
- $req = self::sendRequest($url, $params, 'POST', $options);
- return $req['ret'] ? $req['msg'] : '';
- }
-
- /**
- * 发送一个GET请求
- * @param string $url 请求URL
- * @param array $params 请求参数
- * @param array $options 扩展参数
- * @return mixed|string
- */
- public static function get($url, $params = [], $options = [])
- {
- $req = self::sendRequest($url, $params, 'GET', $options);
- return $req['ret'] ? $req['msg'] : '';
- }
-
- /**
- * CURL发送Request请求,含POST和REQUEST
- * @param string $url 请求的链接
- * @param mixed $params 传递的参数
- * @param string $method 请求的方法
- * @param mixed $options CURL的参数
- * @return array
- */
- public static function sendRequest($url, $params = [], $method = 'POST', $options = [])
- {
- $method = strtoupper($method);
- $protocol = substr($url, 0, 5);
- $query_string = is_array($params) ? http_build_query($params) : $params;
-
- $ch = curl_init();
- $defaults = [];
- if ('GET' == $method) {
- $geturl = $query_string ? $url . (stripos($url, "?") !== false ? "&" : "?") . $query_string : $url;
- $defaults[CURLOPT_URL] = $geturl;
- } else {
- $defaults[CURLOPT_URL] = $url;
- if ($method == 'POST') {
- $defaults[CURLOPT_POST] = 1;
- } else {
- $defaults[CURLOPT_CUSTOMREQUEST] = $method;
- }
- $defaults[CURLOPT_POSTFIELDS] = $params;
- }
-
- $defaults[CURLOPT_HEADER] = false;
- $defaults[CURLOPT_USERAGENT] = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.98 Safari/537.36";
- $defaults[CURLOPT_FOLLOWLOCATION] = true;
- $defaults[CURLOPT_RETURNTRANSFER] = true;
- $defaults[CURLOPT_CONNECTTIMEOUT] = 3;
- $defaults[CURLOPT_TIMEOUT] = 3;
-
- // disable 100-continue
- curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));
-
- if ('https' == $protocol) {
- $defaults[CURLOPT_SSL_VERIFYPEER] = false;
- $defaults[CURLOPT_SSL_VERIFYHOST] = false;
- }
-
- curl_setopt_array($ch, (array)$options + $defaults);
-
- $ret = curl_exec($ch);
- $err = curl_error($ch);
-
- if (false === $ret || !empty($err)) {
- $errno = curl_errno($ch);
- $info = curl_getinfo($ch);
- curl_close($ch);
- return [
- 'ret' => false,
- 'errno' => $errno,
- 'msg' => $err,
- 'info' => $info,
- ];
- }
- curl_close($ch);
- return [
- 'ret' => true,
- 'msg' => $ret,
- ];
- }
-
- /**
- * 异步发送一个请求
- * @param string $url 请求的链接
- * @param mixed $params 请求的参数
- * @param string $method 请求的方法
- * @return boolean TRUE
- */
- public static function sendAsyncRequest($url, $params = [], $method = 'POST')
- {
- $method = strtoupper($method);
- $method = $method == 'POST' ? 'POST' : 'GET';
- //构造传递的参数
- if (is_array($params)) {
- $post_params = [];
- foreach ($params as $k => &$v) {
- if (is_array($v)) {
- $v = implode(',', $v);
- }
- $post_params[] = $k . '=' . urlencode($v);
- }
- $post_string = implode('&', $post_params);
- } else {
- $post_string = $params;
- }
- $parts = parse_url($url);
- //构造查询的参数
- if ($method == 'GET' && $post_string) {
- $parts['query'] = isset($parts['query']) ? $parts['query'] . '&' . $post_string : $post_string;
- $post_string = '';
- }
- $parts['query'] = isset($parts['query']) && $parts['query'] ? '?' . $parts['query'] : '';
- //发送socket请求,获得连接句柄
- $fp = fsockopen($parts['host'], isset($parts['port']) ? $parts['port'] : 80, $errno, $errstr, 3);
- if (!$fp) {
- return false;
- }
- //设置超时时间
- stream_set_timeout($fp, 3);
- $out = "{$method} {$parts['path']}{$parts['query']} HTTP/1.1\r\n";
- $out .= "Host: {$parts['host']}\r\n";
- $out .= "Content-Type: application/x-www-form-urlencoded\r\n";
- $out .= "Content-Length: " . strlen($post_string) . "\r\n";
- $out .= "Connection: Close\r\n\r\n";
- if ($post_string !== '') {
- $out .= $post_string;
- }
- fwrite($fp, $out);
- //不用关心服务器返回结果
- //echo fread($fp, 1024);
- fclose($fp);
- return true;
- }
-
- /**
- * 发送文件到客户端
- * @param string $file
- * @param bool $delaftersend
- * @param bool $exitaftersend
- */
- public static function sendToBrowser($file, $delaftersend = true, $exitaftersend = true)
- {
- if (file_exists($file) && is_readable($file)) {
- header('Content-Description: File Transfer');
- header('Content-Type: application/octet-stream');
- header('Content-Disposition: attachment;filename = ' . basename($file));
- header('Content-Transfer-Encoding: binary');
- header('Expires: 0');
- header('Cache-Control: must-revalidate, post-check = 0, pre-check = 0');
- header('Pragma: public');
- header('Content-Length: ' . filesize($file));
- ob_clean();
- flush();
- readfile($file);
- if ($delaftersend) {
- unlink($file);
- }
- if ($exitaftersend) {
- exit;
- }
- }
- }
- }
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