Using a HTML select element to add get parameters to URL

I'm on a page like /gallery.php?place=300&name=place1, and I want it so that when I submit this form it goes to /gallery.php?place=300&name=place1&tag=X, where X is the number of the tag selected.

What's wrong here?

<form action="/gallery.php?place=300&name=place1" method="get">
    <s开发者_如何学JAVAelect name="tag">
        <option value=1>Aerial</option>
        <option value=2>Autumn</option>
        <option value=4>Boats</option>
        <option value=6>Buildings</option>
        <option value=7>Canals</option>
    </select>
    <input type="submit" value="Filter"/>
</form>

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Use hidden inputs instead of trying to use the query string twice:

<form action="/gallery.php" method="get">
    <select name="tag">
        <option value=1>Aerial</option>
        <option value=2>Autumn</option>
        <option value=4>Boats</option>
        <option value=6>Buildings</option>
        <option value=7>Canals</option>
    </select>
    <input type="hidden" name="place" value="300" />
    <input type="hidden" name="name" value="place1" />
    <input type="submit" value="Filter" />
</form>

Using a form with method get was overwriting the query string in your form action.

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This extra parameters seem to work for me locally when using "post" instead of "get." Is that it?