191 lines
5.0 KiB
PHP
191 lines
5.0 KiB
PHP
<?php
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/**
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* QueryList
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*
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* 一个基于phpQuery的通用列表采集类
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*
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* @author Jaeger
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* @email 734708094@qq.com
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* @link http://git.oschina.net/jae/QueryList
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* @version 1.6.0
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*/
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require('phpQuery/phpQuery.php');
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class QueryList{
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private $pageURL;
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private $regArr = array();
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public $jsonArr = array();
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private $regRange;
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private $html;
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private $output_encoding;
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private $html_encoding;
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/**
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* 构造函数
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* @param string $page 要抓取的网页URL地址(支持https);或者是html源代码
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* @param array $regArr 【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"
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* @param string $regRange 【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
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* @param string $getHtmlWay 【源码获取方式】指是通过curl抓取源码，还是通过file_get_contents抓取源码
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* @param string $output_encoding【输出编码格式】指要以什么编码输出(UTF-8,GB2312,.....)，防止出现乱码,如果设置为 假值 则不改变原字符串编码
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*/
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public function QueryList($page,$regArr,$regRange='',$getHtmlWay="curl",$output_encoding=false)
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{
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$this->output_encoding = $output_encoding;
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if($this->isURL($page))
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{
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$this->pageURL = $page;
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if($getHtmlWay=="curl")
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{
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//为了能获取https://
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL,$this->pageURL);
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
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curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
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curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
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$this->html = curl_exec($ch);
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curl_close($ch);
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}else{
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$this->html=file_get_contents($this->pageURL);
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}
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}else{
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$this->html = $page;
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}
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//获取编码格式
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$this->html_encoding = $this->get_encode($this->html);
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if(!empty($regArr))
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{
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$this->regArr = $regArr;
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$this->regRange = $regRange;
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$this->getList();
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}
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}
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public function setQuery($regArr,$regRange='')
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{
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$this->jsonArr=array();
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$this->regArr = $regArr;
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$this->regRange = $regRange;
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$this->getList();
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}
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private function getList()
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{
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$hobj = phpQuery::newDocumentHTML($this->html);
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if(!empty($this->regRange))
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{
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$robj = pq($hobj)->find($this->regRange);
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$i=0;
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foreach($robj as $item)
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{
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while(list($key,$reg_value)=each($this->regArr))
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{
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$iobj = pq($item)->find($reg_value[0]);
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switch($reg_value[1])
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{
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case 'text':
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$this->jsonArr[$i][$key] = trim(pq($iobj)->text());
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break;
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case 'html':
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$this->jsonArr[$i][$key] = trim(pq($iobj)->html());
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break;
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default:
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$this->jsonArr[$i][$key] = pq($iobj)->attr($reg_value[1]);
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break;
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}
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}
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//重置数组指针
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reset($this->regArr);
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$i++;
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}
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}
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else
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{
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while(list($key,$reg_value)=each($this->regArr))
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{
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$lobj = pq($hobj)->find($reg_value[0]);
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$i=0;
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foreach($lobj as $item)
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{
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switch($reg_value[1])
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{
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case 'text':
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$this->jsonArr[$i++][$key] = trim(pq($item)->text());
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break;
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case 'html':
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$this->jsonArr[$i++][$key] = trim(pq($item)->html());
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break;
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default:
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$this->jsonArr[$i++][$key] = pq($item)->attr($reg_value[1]);
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break;
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}
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}
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}
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}
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if($this->output_encoding)
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{
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//编码转换
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$this->jsonArr = $this->array_convert_encoding($this->jsonArr,$this->output_encoding,$this->html_encoding);
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}
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}
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public function getJSON()
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{
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return json_encode($this->jsonArr);
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}
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/**
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* 获取文件编码
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* @param $string
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* @return string
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*/
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private function get_encode($string){
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return mb_detect_encoding($string, array('ASCII','GB2312','GBK','UTF-8'));
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}
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/**
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* 递归转换数组值得编码格式
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* @param array $arr
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* @param string $to_encoding
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* @param string $from_encoding
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* @return array
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*/
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private function array_convert_encoding($arr,$to_encoding,$from_encoding)
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{
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if(!is_array($arr))return $arr;
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foreach ($arr as $key => $value) {
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if (is_array($value)) {
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$arr[$key] = $this->array_convert_encoding($value,$to_encoding,$from_encoding);
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}else{
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$arr[$key] = mb_convert_encoding($value, $to_encoding,$from_encoding);
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}
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}
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return $arr;
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}
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/**
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* 简单的判断一下参数是否为一个URL链接
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* @param string $str
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* @return boolean
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*/
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private function isURL($str)
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{
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if(preg_match('/^http(s)?:\/\/.+/', $str))
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{
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return true;
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}
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return false;
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}
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} |