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<?php

/**
* Display Entries Left Based on Entry Limit
* http://gravitywiz.com/2012/04/25/display-number-of-entries-left-based-on-entry-limit/
*/

// update the "4" to the ID of your form
add_action('gform_pre_render_4', 'gform_display_limit');
function gform_display_limit($form) {
    
    // put the %s wherever you want the number of entries to display in your message
    $entries_left_message = 'Only %s positions left!';
    
    /* You do not need to edit below this line */
    
    $entry_count = RGFormsModel::get_lead_count($form['id'], '');
    $entries_left = $form["limitEntriesCount"] - $entry_count;
    
    if($entries_left > 0) {
        $form['description'] .= sprintf('<div class="entries-left">' . $entries_left_message . '</div>', $entries_left);
    }
    
    return $form;
}