如何将简单的搜索查询传递到URL？

Question

I have a search form on my site, and I want to pass the text in the form to the URL, like: mysite.com/search.php?q=apples (if search word was apples).
I figure that way people can bookmark their searches.

One solution I thought would be to catch the searchword in search.php and then reload into a new made URL. But it's not very elegant to reload like that. So how can I do it - I mean, how is it normally done? Do I need to use jQuery?

Clarification: I know how to get the vars from the URL in php. What I need is to control the URL that will be opened when the user presses SUBMIT, and the URL needs to contain the user's search word! Just like Google or DuckDuckGo, I put "apples" and the URL becomes ...?q=apples. But - how?! (Then I'll pick that up in the search.php, of course, but I know how to do that.) This is what I have now:

<div id="topnav">
<form action="search.php" method="post">
<input name="searchword" type="text">
<input type="submit">
</form>

Thank you so much.

Answer 1

Upon reading the clarification. What you need is a search form that submits to your search.php for example:

<form action="search.php" method="get">
<input type="text" value="search word" name="q" />
<input type="submit" value="submit" />
</form>

This will pass whatever value entered in the input named q to the search.php script.