1 <?php
2 /**
3 * HTTP 请求类
4 */
5 class HttpHelper {
6
7 const METHOD_GET = 'GET';
8 const METHOD_POST = 'POST';
9
10 private static $_connectTimeout = 60;
11 private static $_timeout = 60;
12
13 /**
14 * Http post请求
15 * @param type $url http url address
16 * @param type $data post params name => value
17 */
18 public static function post($url, $data = array()){
19
20 $queryString = self::buildHttpQueryString($data, self::METHOD_POST);
21
22 $response = self::makeHttpRequest($url, self::METHOD_POST,$queryString);
23 return $response;
24 }
25
26 /**
27 * http get 请求
28 * @param type $url http url address
29 * @param type $data get params name => value
30 */
31 public static function get($url,$data = array()) {
32 if(!empty($data)){
33 $url .= "?" . self::buildHttpQueryString($data, self::METHOD_GET);
34 }
35 $response = self::makeHttpRequest($url, self::METHOD_GET);
36 return $response;
37 }
38
39 /**
40 * 构造并发送一个http请求
41 * @param type $url
42 * @param type $method
43 * @param type $postFields
44 * @return type
45 */
46 public static function makeHttpRequest($url,$method,$postFields = null) {
47 $ch = curl_init();
48 curl_setopt($ch, CURLOPT_URL, $url);
49 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
50 if(self::METHOD_POST == $method){
51 curl_setopt($ch, CURLOPT_POST, 1);
52 if(!empty($postFields)){
53 curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);
54 }
55 }
56 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, self::$_connectTimeout);
57 curl_setopt($ch, CURLOPT_TIMEOUT, self::$_timeout);
58 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
59 curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
60
61 $result = curl_exec($ch);
62 curl_close($ch);
63 return $result;
64 }
65
66 /**
67 * 构造http请求的查询字符串
68 * @param array $params
69 * @param type $method
70 * @return string
71 */
72 public static function buildHttpQueryString(array $params, $method = self::METHOD_GET) {
73 if(empty($params)){
74 return '';
75 }
76 if(self::METHOD_GET == $method){
77 $keys = array_keys($params);
78 $values = self::urlEncode(array_values($params));
79 $params = array_combine($keys, $values);
80 }
81
82 $fields = array();
83
84 foreach ($params as $key => $value) {
85 $fields[] = $key . '=' . $value;
86 }
87 return implode('&',$fields);
88 }
89
90 /**
91 * url encode 函数
92 * @param type $item 数组或者字符串类型
93 * @return type
94 */
95 public static function urlEncode($item) {
96 if(is_array($item)){
97 return array_map(array('HttpHelper','urlEncode'), $item);
98 }
99 return rawurlencode($item);
100 }
101
102 /**
103 * url decode 函数
104 * @param type $item 数组或者字符串类型
105 * @return type
106 */
107 public static function urlDecode($item){
108 if(is_array($item)){
109 return array_map(array('HttpHelper','urlDecode'), $item);
110 }
111 return rawurldecode($item);
112 }
113 }
使用方法：
echo HttpHelper::get('http://www.baidu.com', array('t' => 1));
