php如何从一个网址中获取到他所对应页面的html源代码?

Question

我用file_get_contents($url);这个方法不行
`$url = $_POST['url'];
$ch = curl_init();
$timeout = 3;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$contents = curl_exec($ch);
curl_close($ch);
echo $contents;
exit;`
url是在前端输入的，我试过了，输入www.baidu.com,显示的仍是百度的界面，而不是他的html源代码

Answer 1

How does php get the html source code of its corresponding page from a URL?-PHP Chinese website Q&A-How does php get the html source code of its corresponding page from a URL?-PHP Chinese website Q&A

Take a look around and learn.

Answer 2

<?php
 $pagecontent = file_get_contents("http://www.php.cn"); 
 echo htmlspecialchars($pagecontent);//htmlentities 或者htmlspecialchars
 ?>

这样就好了吧  你试试