分享下页面关键字抓取components.arrow.com站点代码_PHP

复制代码 代码如下:
 /**
 * HOST: components.arrow.com
 */
 //set_time_limit(0);
 // base function
 function curl_get($url, $data = array(), $header = array(), $timeout = 15, $port = 80, $reffer = '', $proxy = '')
 {
 $ch = curl_init();
 if (!empty($data)) {
 $data = is_array($data)?http_build_query($data): $data;
 $url .= (strpos($url,'?')? '&': "?") . $data;
 }
 curl_setopt($ch, CURLOPT_URL, $url);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
 curl_setopt($ch, CURLOPT_POST, 0);
 curl_setopt($ch, CURLOPT_PORT, $port);
 curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
 curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); //是否抓取跳转后的页面
 $reffer && curl_setopt($ch, CURLOPT_REFERER, $reffer);
 if($proxy) {
 curl_setopt($ch, CURLOPT_PROXY, $proxy);
 curl_setopt($ch, CURLOPT_PROXYPORT, 1723);
 curl_setopt($ch, CURLOPT_PROXYUSERPWD,"andhm001:andhm123");
 }

$result = array();
 $result['result'] = curl_exec($ch);
 if (0 != curl_errno($ch)) {
 $result['error'] = "Error:\n" . curl_error($ch);

}
 curl_close($ch);
 return $result;
 }

复制代码 代码如下:
function curl_post($url, $data = array(), $header = array(), $timeout = 15, $port = 80)
 {
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_URL, $url);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
 curl_setopt($ch, CURLOPT_PORT, $port);
 !empty ($header) && curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
 curl_setopt($ch, CURLOPT_POST, 1);
 curl_setopt($ch, CURLOPT_POSTFIELDS, $data);

$result = array();
 $result['result'] = curl_exec($ch);
 if (0 != curl_errno($ch)) {
 $result['error'] = "Error:\n" . curl_error($ch);

}
 curl_close($ch);

return $result;
 }

/**
 * 获取列表页的html源码
 * @param string $keywords 搜索关键字
 * @param int $start 开始记录数
 * @return boolean|array
 */
 function getListHtml($keywords, $start = 0)
 {
 if ($start  {
 return false;
 }

$postData = array(
 'search_token' => $keywords,
 'start' => $start,
 'limit' => 100,
 );

$result = curl_post('http://components.arrow.com/part/search/' . $keywords, http_build_query($postData));
 if ( isset($result['error']) )
 {
 return false;
 //exit($result['error']);
 }
 $result = $result['result'];

return $result;
 }

/**
 * 获取列表页 连接href
 * @param string $html html源码
 * @return array
 */
 function getListHref($html)
 {
 $pattern = '/

]+)">/isU';
 if (preg_match_all($pattern, $html, $matches))
 {
 return $matches[1];
 } else {
 // 没有匹配项
 return array();
 }
 }

/**
 * 获取下一页数字start
 * @param string $html html源码
 * @return number
 */
 function getListNextPage($html)
 {
 $pattern = '/<script>buildPagination\(\'\d+\',\'\d+\',\'(\d+)\',\d+\);<\/script>/isU';<BR> if (preg_match($pattern, $html, $matches))<BR> {<BR> return intval($matches[1]);<BR> } else {<BR> return -1;<BR> }<BR> }<br><br>/**<BR> * 获取列表也所有的详细列表<BR> * @param string $keywords 搜索关键字<BR> * @return boolean|array<BR> */<BR> function getListHrefAll($keywords)<BR> {<BR> if (empty($keywords))<BR> {<BR> return false;<BR> }<br><br>$html = getListHtml($keywords);<BR> $hrefList = getListHref($html);<BR> if (empty($hrefList))<BR> {<BR> // 没有结果<BR> return array();<BR> }<BR> $nextPage = getListNextPage($html);<BR> $loop =0;<BR> while ($nextPage > 0)<BR> {<BR> $html = getListHtml($keywords, $nextPage);<BR> $tmpHrefList = getListHref($html);<BR> $hrefList = array_merge($hrefList, $tmpHrefList);<BR> $nextPage = getListNextPage($html);<BR> $loop ++;<BR> }<BR> return $hrefList;<BR> }<br><br>/**<BR> * 获取详情页信息<BR> * @param string $url url地址<BR> * @return array()<BR> */<BR> function getDetail($url)<BR> {<BR> if ( empty($url) )<BR> {<BR> return false;<BR> }<BR> $host = 'http://components.arrow.com';<br><br>$url = $host . $url;<BR> $result = curl_get($url);<BR> if ( isset($result['error']) )<BR> {<BR> return array();<BR> //exit($result['error']);<BR> }<BR> $html = $result['result'];<br><br>$result = array(<BR> 'sup_part' => '', // 供应商型<BR> 'sup_id' => '', // 供应商ID<BR> 'mfg_part' => '', // 制造商型号<BR> 'mfg_name' => '', // 制造商名称<BR> 'cat_name' => '', // 分类名称<BR> 'para' => '', // 属性<BR> 'desc' => '', // 描述<BR> 'pdf_url' => '', // PDF地址<BR> 'sup_stock' => '', // 库存<BR> 'min_purch' => '', // 最小订购量<BR> 'price' => '', // 价格<BR> 'img_url' => '', // 图片地址<BR> 'createtime' => '', // 创建时间<BR> 'datacode' => '', // 批号<BR> 'package' => '', // 封装<BR> 'page_url' => '', // 页面地址<BR> );<br><br>// mfg_part<BR> $pattern = '/<li>[\s\n]*<strong>Part No:\s*<\/strong>(.+)<\/li>/isU';<BR> if (preg_match($pattern, $html, $matches))<BR> {<BR> $result['mfg_part'] = trim($matches[1]);<BR> } else {file_put_contents('page.txt', $html);die('xxx');<BR> return array();<BR> }<br><br>// mfg_name<BR> $pattern = '/<li>[\s\n]*<strong>Manufacturer: <\/strong>(.+)<\/li>/isU';<BR> if (preg_match($pattern, $html, $matches))<BR> {<BR> $result['mfg_name'] = trim($matches[1]);<BR> }<br><br>// cat_name<BR> $pattern = '/displayCategory\(\'(.[^\']+)\'\);/isU';<BR> if (preg_match($pattern, $html, $matches))<BR> {<BR> $result['cat_name'] = trim($matches[1]);<BR> $result['cat_name'] = str_replace('|', '>', $result['cat_name']);<BR> }<br><br>// para<BR> $tablepattern = '/<table\s+id="part_specs".[^>]*>(.+)<\/table>/isU';<BR> if (preg_match($tablepattern, $html, $matches))<BR> {<BR> $pattern = '/<tr>[\s\n]*<td><strong>(.+)<\/strong><\/td><td>(.+)<\/td>[\s\n]*<\/tr>/isU';<BR> if (preg_match_all($pattern, $matches[1], $matches))<BR> {<BR> foreach($matches[1] as $k=>$v)<BR> {<BR> $v = trim($v);<BR> if ('Package Type' == $v)<BR> {<BR> $result['package'] = trim($matches[2][$k]);<BR> continue;<BR> }<BR> $result['para'][$v] = trim($matches[2][$k]);<BR> }<BR> }<BR> }<br><br>// desc<BR> $pattern = '/<div\s+id="part_title">.+<h4>(.+)<\/h4>[\s\n]*<\/div>/isU';<BR> if (preg_match($pattern, $html, $matches))<BR> {<BR> $result['desc'] = trim($matches[1]);<BR> }<br><br>// pdf_url<BR> $pattern = '/<li\s+class="datasheet">[\s\n]*<strong>Datasheet:<\/strong><a\s+href="(.[^"]+)"/isU';<BR> if (preg_match($pattern, $html, $matches))<BR> {<BR> $result['pdf_url'] = $host . trim($matches[1]);<BR> }<br><br>// sup_stock<BR> $pattern = '/<td\s+id="inv_1"\s+class="li_inv">([\d,]+)<\/td>/isU';<BR> if (preg_match($pattern, $html, $matches))<BR> {<BR> $result['sup_stock'] = trim($matches[1]);<BR> $result['sup_stock'] = str_replace(',', '', $result['sup_stock']);<BR> }<br><br>// min_purch<BR> $pattern = '/<span\s+id="multiples">[\s\n]*<strong>Multiple:\s*<\/strong>(.+)<\/span>/isU';<BR> if (preg_match($pattern, $html, $matches))<BR> {<BR> $result['min_purch'] = trim($matches[1]);<BR> }<br><br>// price<BR> $pattern = '/<div\s+id="price_1"\s+class="li_price">(.[^<]+)<\/div>/isU';<BR> if (preg_match($pattern, $html, $matches))<BR> {<BR> $result['price'][1] = trim($matches[1]);<BR> }<BR> $pattern = '/<div\s+id="price_1"\s+class="li_price">[\s\n]*<span.[^>]+title="(.[^"]+)">/isU';<BR> if (preg_match($pattern, $html, $matches))<BR> {<BR> $priceurl = str_replace('&', '&', $matches[1]);<BR> $json = curl_get($priceurl);<BR> $json = $json['result'];<BR> if (! empty($json))<BR> {<BR> $jsonresult = json_decode($json, true);<BR> foreach ($jsonresult['parts'][0]['webprice']['resale'] as $k=>$v)<BR> {<BR> $result['price'][$v['minqty']] = $v['price'];<BR> }<BR> }<BR> }<br><br>// img_url<BR> $pattern = '/<div\s+id="part_image">[\s\n]*<img \s+src="(.[^"]+)"/isU';<BR alt="分享下页面关键字抓取components.arrow.com站点代码_PHP" > if (preg_match($pattern, $html, $matches))<BR> {<BR> $result['img_url'] = trim($matches[1]);<BR> }<br><br>// page_url<BR> $result['page_url'] = $url;<br><br>return $result;<BR> }<br><br>/**<BR> * 最终调用函数<BR> * @param string $keywords 搜索关键字<BR> * @return array<BR> */<BR> function getData($keywords)<BR> {<BR> $hrefList = getListHrefAll($keywords);<BR> $result = array();<br><br>foreach ($hrefList as $k=>$v)<BR> {<BR> $result[] = getDetail($v);<BR> }<br><br>return $result;<BR> }<br><br>// Test Script<BR> $keywords = trim($_GET['keywords']);<BR> $result = getData($keywords);<br><br>print_r($result);<BR> </script>