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解決方法：

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Most likely if you don't get any content while accessing an webpage, probably it doesn't want you to be able to get the content. So how does it identify that a script is trying to access the webpage, not a human? Generally, it is the?User-Agent?header in the HTTP request sent to the server.

So to make the website think that the script accessing the webpage is also a?human?you must change the?User-Agent?header during the request. Most web servers would likely allow your request if you set the?User-Agent?header to an value which is used by some common web browser.

A list of common user agents used by browsers are listed below:

Chrome: 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36'Firefox: 'Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:10.0) Gecko/20100101 Firefox/10.0'

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$context = stream_context_create(array("http" => array("header" => "User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36")) );echo file_get_contents("www.google.com", false, $context);

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轉(zhuǎn)載于:https://www.cnblogs.com/Skate0rDie/p/10658494.html

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