This module load field follow condition type field Drupal 7

mymodule.php

  <?php 
    public function load_fields($entity_type, $bundle_name) {
        $instances = field_info_instances($entity_type, $bundle_name); // Load entity tye and bundle_name
        $fields = array();
        foreach($instances as $key => $instance) {
             foreach($instance as $field_name => $instance_field)
             {
                 $field_info = field_info_field($field_name);

                 if($field_info['type'] === 'text') { // Get Type Fields 'text' , You can conndition type other
                     $fields[$field_name] = $instance_field;
                 }
             }

        }
        return $fields;
    }