实例讲解PHP搜索引擎类_PHP教程

PHP搜索引擎类1.类文件:

1. class grabble{
2. var $filename;
3. var $html;
4. var $urls = array(); //url历史
5. var $url ;
6. var $url_1;
7. function grabble(){
8. set_time_limit(3600);
9. }
10. function set($_filename){
11. $this->filename = $_filename;
12. array_push ($this->url, $_filename);
13. }//end.set;
14. function set_url($_url){
15. eregi('(^http://.*[^/]).*' , $_url , $array);
16. $this->url = $array[1] . "/";
17. eregi('(^http://.*[^/]).*' , $_url , $array);
18. //print_r($array);
19. $this->url_1 = $array[1];
20. }
21. function get(){
22. }//end.get;
23. function get_html($_filename=null){
24. $this->filename = $_filename;
25. $this->html = @implode('', file($_filename)) ;
26. return $this->html;
27. }//end.get_html;
28. function get_title($_str=null){
29. preg_match_all("/<title>(.*)</title>
    /Uis", $_str, $matches);
30. return $matches[1][0];
31. }//end.get_title;
32. function get_img($_str=null){
33. preg_match_all("/<imgs+[^>]*s*srcs*=
    s*(['"]?)([^'">s]*)\1s*[^>]*>/i",
    $_str, $arr);
34. print_r($arr[2]);
35. }
36. function get_link($_str=null){
37. preg_match_all("/<a.*href=['|"](.+)?
    ['|"].*>.+</a>/Uis", $_str, $arr);
38. //print_r($arr);
39. return $arr[1];
40. }//end.get_link;
41. function get_link_name($_str=null){
42. preg_match_all("/<a.*href=['|"](.+)?
    ['|"].*>(.+)</a>/Uis", $_str, $arr);
43. return $arr[2];
44. }//end.get_link_name;
45. function link_list($_url=null, $_c=0){
46. eregi('(^http://.*)/.*' , $_url , $array);
47. $_url_0 = $array[1];
48. $_html = $this->get_html($_url);
49. $_link = $this->get_link($_html);
50. $_list = $this->get_link_name($_html);
51. $s = "";
52. for($i=0;$i<count($_link);$i++){
53. $s .= "
    " . "<INPUT TYPE='checkbox'
    NAME='link_name[]' value='" .$_link[$i]. "'
    />" . $_list[$i] . " ";
54. echo "<br/>" . "<INPUT TYPE='checkbox'
    NAME='link_name[]' value='" .$_link[$i]. "'
    />" . $_list[$i] . " ";
55. echo "<a href='" . $_url_0 . "/" . $_link[$i]
    . "' target='_blank'>" . $_url_0 . "/" .
    $_link[$i] . "a>";
56. if($_c < 3){
57. if(eregi('^[$_url_0|mailto:].*' ,$_link[$i])){
58. echo "<a href='" . $_link[$i] . "'
    target='_blank'>" . $_link[$i] . "a>";
59. $s .= $this->link_list( $_link[$i] , $_c+1);
60. }
61. elseif(!eregi('^[http://|ftp://|file:///].
    *' ,$_link[$i])){
62. $s .= $this->link_list( $_url_0 . "/" . $_link[$i] , $_c+1);
63. }
64. }
65. }
66. return $s;
67. }//end.link_list;
68. }//end.grabble.

PHP搜索引擎类2.调用实例:

< ?php  
require_once("grabble.
class.php");  
$gf = new grabble();  
echo $gf->link_list(
'http://10.22.65.101/');  
?> 

以上就是PHP搜索引擎类的相关使用方法。

http://www.bkjia.com/PHPjc/445961.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/445961.htmlTechArticle我们为大家详细介绍了有关 PHP搜索引擎类1.类文件: classgrabble{ var$filename; var$html; var$ urls = array ();//url历史 var$url; var$url_1; functiongrabble(){ se...