如何在PHP中使用Google搜索查询? [英] How to use Google Search query in PHP?

问题描述

我正在尝试在我的网站中使用Google搜索查询，我需要获取发送给该查询的文本的网站网址，该代码可以很好地处理有限的结果，但是一段时间后它将停止工作，也许Google已禁用它有一段时间了?

I am trying to use Google Search query in my website, I need to get website URLs for the text I sent to the query, the code works fine for limited results, but then it stops working after some time, maybe Google disables it for some time?

这是代码:

        $cleanQuery = str_replace(" ","+",$text);
        $url = 'http://www.google.com/search?q='.$cleanQuery;
        $scrape = file_get_contents($url);

$ text是用户在搜索时输入的文本.但是问题是它只能在一段时间内起作用，然后停止.

$text is the text entered by the user while searching. But the problem is it works only for sometime, then it stops.

工作示例: http://www.alleffort.com/tools/findurl.php

如果您在文本区域中输入了一些文本，则在提交时应该检索所有相关信息，但是它不起作用.

If you enter some text in the textarea, then on submits it should retrieve all the related information, but it is not working.

推荐答案

问题可能出在您要附加到url的字符串上:

The problem is probably the string you are appending to the url:

 $cleanQuery = str_replace(" ","+",$text);

这不能正确地准备要在查询字符串中使用的字符串，您将需要编码更多的字符，而不仅仅是空格.

This does not prepare the string correctly for use in a query string, you would need to encode more characters than just the space.

相反，您应该使用 urlencode() :

Instead, you should use urlencode():

$cleanQuery = urlencode($text);

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