实例讲解PHP搜索引擎类_PHP教程-PHP-Tutorial-php.cn

实例讲解PHP搜索引擎类_PHP教程

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Freigeben： 2016-07-15 13:34:49

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PHP搜索引擎类1.类文件:

class grabble{
var $filename;
var $html;
var $urls = array(); //url历史
var $url ;
var $url_1;
function grabble(){
set_time_limit(3600);
}
function set($_filename){
$this->filename = $_filename;
array_push ($this->url, $_filename);
}//end.set;
function set_url($_url){
eregi('(^http://.*[^/]).*' , $_url , $array);
$this->url = $array[1] . "/";
eregi('(^http://.*[^/]).*' , $_url , $array);
//print_r($array);
$this->url_1 = $array[1];
}
function get(){
}//end.get;
function get_html($_filename=null){
$this->filename = $_filename;
$this->html = @implode('', file($_filename)) ;
return $this->html;
}//end.get_html;
function get_title($_str=null){
preg_match_all("/title>(.*)/title>
/Uis", $_str, $matches);
return $matches[1][0];
}//end.get_title;
function get_img($_str=null){
preg_match_all("/imgs+[^>]*s*srcs*=
s*(['"]?)([^'">s]*)\1s*[^>]*>/i",
$_str, $arr);
print_r($arr[2]);
}
function get_link($_str=null){
preg_match_all("/a.*href=['|"](.+)?
['|"].*>.+/a>/Uis", $_str, $arr);
//print_r($arr);
return $arr[1];
}//end.get_link;
function get_link_name($_str=null){
preg_match_all("/a.*href=['|"](.+)?
['|"].*>(.+)/a>/Uis", $_str, $arr);
return $arr[2];
}//end.get_link_name;
function link_list($_url=null, $_c=0){
eregi('(^http://.*)/.*' , $_url , $array);
$_url_0 = $array[1];
$_html = $this->get_html($_url);
$_link = $this->get_link($_html);
$_list = $this->get_link_name($_html);
$s = "";
for($i=0;$icount($_link);$i++){
$s .= "
" . "INPUT TYPE='checkbox'
NAME='link_name[]' value='" .$_link[$i]. "'
/>" . $_list[$i] . " ";
echo "br/>" . "INPUT TYPE='checkbox'
NAME='link_name[]' value='" .$_link[$i]. "'
/>" . $_list[$i] . " ";
echo "a href='" . $_url_0 . "/" . $_link[$i]
. "' target='_blank'>" . $_url_0 . "/" .
$_link[$i] . "a>";
if($_c 3){
if(eregi('^[$_url_0|mailto:].*' ,$_link[$i])){
echo "a href='" . $_link[$i] . "'
target='_blank'>" . $_link[$i] . "a>";
$s .= $this->link_list( $_link[$i] , $_c+1);
}
elseif(!eregi('^[http://|ftp://|file:///].
*' ,$_link[$i])){
$s .= $this->link_list( $_url_0 . "/" . $_link[$i] , $_c+1);
}
}
}
return $s;
}//end.link_list;
}//end.grabble.

PHP搜索引擎类2.调用实例:

<ol class="dp-xml">
<li class="alt"><span><span class="tag"><span> ?php  </span></span></span></li>
<li><span>require_once("grabble.<br>class.php");  </span></li>
<li class="alt">
<span>$</span><span class="attribute">gf</span><span> = </span><span class="attribute-value">new</span><span> grabble();  </span>
</li>
<li>
<span>echo $gf-</span><span class="tag">></span><span>link_list(<br>'http://10.22.65.101/');  </span>
</li>
<li class="alt">
<span class="tag">?></span><span> </span>
</li>
</ol><br>

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以上就是PHP搜索引擎类的相关使用方法。