Question

I’m trying to put all the values from a postmeta key into a foreach loop ,

I’ve tried get_post_ meta and get_post_custom but these only seem to work based on a post Id .

Also tried get_post_custom_values but this again only seems to return the current post..?

I just want all the values from a certain meta_key . I’m trying to populate a form dropdown list with the values…?

Any ideas…

This is what i now have;

$results = $wpdb->get_results( "SELECT $wpdb->postmeta.meta_value WHERE $wpdb- >
postmeta.meta_key = 'geo_short_address'" );
$options = array();
foreach ($results as $result) {
$options[$result->meta_value] = ucwords( $meta_value );

}

?>
             </select> 
        <select name="country" id="country">
        <option value="selected">Select a location</option>
        <?php




        foreach ($options as $key => $value) {
            ?>
        <?php $retaincount = $value  ?>
                       <option <?php if ($_GET['country'] == $retaincount ) { ?
         >selected="<?php echo $value; ?>" <?php }; ?>value="<?php echo $value ?>">
         <?  php echo $value?></option>


            <?php

    }
    ?>
             </select> 
    <p>
    <input type="submit" value="<?php _e('Filter', 'appthemes'); ?>"
            class="submit" />
    <input type="hidden" name="action" value="Filter" />

    </p>
    <div class="clear"></div>
        </form>
        <?php endif;



        }

        Thanks

Answer 1

I’m pretty sure that you will need a custom MySQL query for that.

Here is something that should work:

global $wpdb;

$results = $wpdb->get_results( "SELECT $wpdb->postmeta.meta_value FROM $wpdb->postmeta WHERE 1=1 AND $wpdb->postmeta.meta_key = 'geo_short_address'" );
$options = array();
foreach ($results as $result) {
    $options[$result->meta_value] = ucwords( $result->meta_value );
}

echo '<select class="field" name="country">';
foreach ($options as $key => $value) {
    echo "<option value='$key'" . ( $_GET['country'] == $value ? " selected='selected'" : "" ) . ">$value</option>";
}
'</select>';

Just replace 'custom_key' with your custom field name and that should give you all values for that custom field.

I can’t test the code right now, so feel free to tell me if it’s not working.