php curl批量打开网址(curl_multi类)的实现代码

2. /*
3. * curl_multi 经测试,大于四个网址时要比Foreach循环快..
4. * by wc1217
5. * edit：bbs.it-home.org
6. */
7. class curl_multi{
8. //Curl句柄
9. //private $curl_handle = null;
10. //网址
11. private $url_list = array();
12. //参数
13. private $curl_setopt = array(
14. 'CURLOPT_RETURNTRANSFER' => 1, //结果返回给变量
15. 'CURLOPT_HEADER' => 0, //要HTTP头不?
16. 'CURLOPT_NOBODY' => 0, //不要内容?
17. 'CURLOPT_FOLLOWLOCATION' => 0, //自动跟踪
18. 'CURLOPT_TIMEOUT' => 6//超时(s)
19. );
21. function __construct($seconds = 30){
22. set_time_limit($seconds);
23. }
25. /*
26. * 设置网址
27. * @list 数组
28. */
29. public function setUrlList($list = array()){
30. $this->url_list = $list;
31. }
33. /*
34. * 设置参数
35. * @cutPot array
36. */
37. public function setOpt($cutPot){
38. $this->curl_setopt = $cutPot + $this->curl_setopt;
39. }
41. /*
42. * 执行
43. * @return array
44. */
45. public function exec(){
46. $mh = curl_multi_init();
48. foreach($this->url_list as $i => $url){
49. $conn[$i] = curl_init($url);
51. foreach($this->curl_setopt as $key => $val){
52. curl_setopt($conn[$i], preg_replace('/(CURLOPT_\w{1,})/ie', '$0', $key), $val);
53. }
54. curl_multi_add_handle($mh, $conn[$i]);
55. }
57. $active = false;
59. do{
60. $mrc = curl_multi_exec($mh, $active);
61. }while($mrc == CURLM_CALL_MULTI_PERFORM);
63. while($active and $mrc == CURLM_OK){
64. if(curl_multi_select($mh) != -1){
65. do{
66. $mrc = curl_multi_exec($mh, $active);
67. }while($mrc == CURLM_CALL_MULTI_PERFORM);
68. }
69. }
71. $res = array();
72. foreach($this->url_list as $i => $url){
73. $res[$i] = curl_multi_getcontent($conn[$i]);
74. curl_close($conn[$i]);
75. curl_multi_remove_handle($mh, $conn[$i]); //用完马上释放资源
76. }
77. curl_multi_close($mh);
78. return $res;
79. }
80. }
81. ?>

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