Zip Code Search GeoDirectory

### 1. Modify the Search Form
You will need to customize the search form to include an input field for the zip code. You can do this by overriding the search form template provided by GeoDirectory.

#### Steps:
1. **Locate the GeoDirectory Search Form Template**:
GeoDirectory uses a template file for its search form. Typically, this is located in:
`wp-content/plugins/geodirectory/templates/search/search-form.php`.

2. **Copy the Template to Your Theme**:
To customize the form without modifying the plugin files directly, you should copy the `search-form.php` file into your theme. Create a folder `geodirectory` in your theme (if it doesn’t already exist) and then copy the template file:
`wp-content/themes/your-theme/geoDirectory/search/search-form.php`.

3. **Add the Zip Code Field**:
In the copied `search-form.php`, add an HTML input field for the zip code:

<div class="geodir_search_input">
       <label for="zip_code">Zip Code</label>
       <input type="text" id="zip_code" name="zip_code" value="<?php echo isset($_GET['zip_code']) ? esc_attr($_GET['zip_code']) : ''; ?>" />
   </div>

4. **Save Changes**:
Once you have added the zip code field, save the file.

### 2. Modify the Search Query
Next, you need to adjust the search query to filter listings based on the entered zip code.

#### Steps:
1. **Hook into the GeoDirectory Search Query**:
You can use WordPress hooks to modify the search query before it runs. The `geodir_search_listing_query_args` filter can be used to adjust the search arguments based on the zip code.

2. **Add a Filter for Zip Code**:
In your theme’s `functions.php` file, add the following code to filter the search results by zip code:

function filter_search_by_zip_code($args) {
       if (isset($_GET['zip_code']) && !empty($_GET['zip_code'])) {
           $zip_code = sanitize_text_field($_GET['zip_code']);
           
           // Modify the query to filter by zip code
           $args['meta_query'] = isset($args['meta_query']) ? $args['meta_query'] : [];
           $args['meta_query'][] = [
               'key'     => 'geodir_location_zip', // Replace with your meta key for zip code
               'value'   => $zip_code,
               'compare' => 'LIKE', // or '=' if you want an exact match
           ];
       }
       return $args;
   }
   add_filter('geodir_search_listing_query_args', 'filter_search_by_zip_code');

– This code checks if the zip code is set in the search form (`$_GET['zip_code']`), sanitizes it, and then adds it to the `meta_query` of the search query.
– Ensure that the `meta_key` (`geodir_location_zip` in the example) corresponds to the actual meta key used by GeoDirectory for storing the zip code. You might need to check how GeoDirectory stores location data.

### 3. Test the Search Functionality
Once the zip code field is added to the search form and the search query is modified, test the search functionality:
1. Enter a zip code in the search form.
2. Check if the search results filter correctly based on the entered zip code.

### Notes:
– Make sure that your GeoDirectory installation stores the zip code in a custom field, usually tied to the location. You may need to check how your installation stores location data (such as using a custom meta key).
– You may need to tweak the code to adjust for different field names or data structures depending on how your GeoDirectory installation is configured.

Let me know if you need further clarification or assistance with this!