php数据采集源码,一个基于phpQuery的php通用采集类分享
一、采集类源码
/**
*通用列表采集类
*版本V1.3
*作者:JAE
*/
require_once '../phpQuery/phpQuery/phpQuery.php';
class QueryList{
private $pageURL;
private $regArr = array();
public $jsonArr = array();
private $regRange;
private $html;
/************************************************
* 参数: 页面地址 选择器数组 块选择器
* 【选择器数组】说明：格式array("名称"=>array("选择器","类型"),.......)
* 【类型】说明：值 "text" ,"html" ,"属性"
*【块选择器】：指 先按照规则 选出 几个大块 ，然后再分别再在块里面 进行相关的选择
*************************************************/
function QueryList($pageURL,$regArr=array(),$regRange='')
{
$this->pageURL = $pageURL;
//为了能获取https://
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$this->pageURL);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
$this->html = curl_exec($ch);
curl_close($ch);
if(!empty($regArr))
{
$this->regArr = $regArr;
$this->regRange = $regRange;
$this->getList();
}
}
function setQuery($regArr,$regRange='')
{
$this->jsonArr=array();
$this->regArr = $regArr;
$this->regRange = $regRange;
$this->getList();
}
private function getList()
{
$hobj = phpQuery::newDocumentHTML($this->html);
if(!empty($this->regRange))
{
$robj = pq($hobj)->find($this->regRange);
$i=0;
foreach($robj as $item)
{
while(list($key,$reg_value)=each($this->regArr))
{
$iobj = pq($item)->find($reg_value[0]);
switch($reg_value[1])
{
case 'text':
$this->jsonArr[$i][$key] = trim(pq($iobj)->text());
break;
case 'html':
$this->jsonArr[$i][$key] = trim(pq($iobj)->html());
break;
default:
$this->jsonArr[$i][$key] = pq($iobj)->attr($reg_value[1]);
break;
}
}
//重置数组指针
reset($this->regArr);
$i++;
}
}
else
{
while(list($key,$reg_value)=each($this->regArr))
{
$lobj = pq($hobj)->find($reg_value[0]);
$i=0;
foreach($lobj as $item)
{
switch($reg_value[1])
{
case 'text':
$this->jsonArr[$i++][$key] = trim(pq($item)->text());
break;
case 'html':
$this->jsonArr[$i++][$key] = trim(pq($item)->html());
break;
default:
$this->jsonArr[$i++][$key] = pq($item)->attr($reg_value[1]);
break;
}
}
}
}
}
function getJSON()
{
return json_encode($this->jsonArr);
}
}
二、使用例子
require 'Query/QueryList.class.php';
//采集OSC的代码分享列表，标题 链接 作者
$url = "http://www.oschina.net/code/list";
$reg = array("title"=>array(".code_title a:eq(0)","text"),"url"=>array(".code_title a:eq(0)","href"),"author"=>array("img","title"));
$rang = ".code_list li";
$hj = new QueryList($url,$reg,$rang);
$arr = $hj->jsonArr;
print_r($arr);
//如果还想采当前页面右边的 TOP40活跃贡献者 图像，得到JSON数据,可以这样写
$reg = array("portrait"=>array(".hot_top img","src"));
$hj->setQuery($reg);
$json = $hj->getJSON();
echo $json . "
";
//采OSC内容页内容
$url = "http://www.oschina.net/code/snippet_186288_23816";
$reg = array("title"=>array(".QTitle h1","text"),"con"=>array(".Content","html"));
$hj = new QueryList($url,$reg);
$arr = $hj->jsonArr;
print_r($arr);
//就举这么多例子吧，是不是用来做采集很方便