使用file_get_contents在php中进行屏幕截图 [英] Screen scapingin in php using file_get_contents

问题描述

我对屏幕抓取非常陌生.我正在尝试从酒店预订网站上获取评论，以显示给我..

Hi I am very new to screen scraping. I am trying to scrape reviews from a hotel booking webite to display on to mine..

我已经走了很远，但是有点卡住了.有人可以帮忙吗?

Ive got this far but got a bit stuck. Can anyone help?

<?php 
$data = file_get_contents('http://www.laterooms.com/en/hotel-reviews/238902_the-westfield-bb-sandown.aspx');
$regex = '/<div id="summary">
(.+?)</div>/';
preg_match($regex,$data,$match);
var_dump($match); 
echo $match[1];
?>

推荐答案

使用 DomDocument

<?php
  define('URL', 'http://www.laterooms.com/en/hotel-reviews/238902_the-westfield-bb-sandown.aspx');
  $doc = new DOMDocument();
  $doc->loadHTML(file_get_contents(URL));
  $summary = $doc->getElementById('summary');
  // also have $doc->getElementsByTagName , etc
  var_export($summary);
?>

此外，对于更复杂的查询，您应该考虑研究 XPATH (类似于jQuery的语法)

Also, for more complicated queries you should consider looking into XPATH (uses jQuery-like syntax)

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