Dropdown Menu for Query_Posts

Question

I can successfully query post results using query posts like so...

<?php

// The Query
query_posts("gdsr_sort=rating");

// The Loop
while ( have_posts() ) : the_post();
?>
<?php get_template_part( 'content', get_post_format() ); ?>
<?php 
endwhile;

// Reset Query
wp_reset_query();

?>

I was wondering if it's possible to make a dropdown menu where users can select different queries. So an example would a dropdown menu that says "Select Query" by deafult then when you click the dropdown menu it gives you different options like "Query 1", "Query 2", Query 3".. and when you click on one it loads the correct query for whatever query is set to number 1, 2, or 3.

I've done a lot of research and haven't found too much help regarding this issue. I don't know if I should set up an if / else statement connect that to the <select> input and then.. I don't know where to go from there.. or if that is even a proper way of doing it.

So, how would I make a dropdown menu that successfully loads different post queries? Any help would truly be appreciated. :)

Answer 1

Here's a simple example of a PHP dropdown, hope this helps.

<select name="mydropdownlist">
<?php
    $options = array('option1' => 'option 1'
                 'option2' => 'option 2'
                 'option3' => 'option 3');

    foreach($options as $value => $caption)
   {
        echo "<option value=\"$value\">$caption</option>";
   }
?>
</select>

Answer 2

You could have a dropdown menu like (in HTML):

<select name="query">
    <option value="0">Select Query</option>
    <option value="1">Query 1</option>
    <option value="2">Query 2</option>
    ...
</select>

And then use the following PHP:

$query = '';

switch( $_POST['query'] ) {
    case '2':
        $query = ''; // your query
        break;
    case '1':
        $query = ''; // your query
        break;
    default:
    case '0':
        $query = 'gdsr_sort=rating';
        break;
}

// The Query
query_posts( $query );

// The Loop
while ( have_posts() ) : the_post();
?>
<?php get_template_part( 'content', get_post_format() ); ?>
<?php 
endwhile;

// Reset Query
wp_reset_query();