In dokan plugin how to add a image/file custom field in vendor registration form

To add a custom image/file field to the vendor registration form in the Dokan plugin, you can use the following steps:

1. First, you need to add the custom field to the registration form. You can do this by using the dokan_seller_registration_field filter hook:

function add_custom_field_to_registration_form( $fields ) {
   $fields['custom_field'] = array(
      'label' => __( 'Custom Field', 'your-text-domain' ),
      'type'  => 'file',
      'placeholder' => __( 'Choose a file', 'your-text-domain' ),
      'required' => true,
   );

   return $fields;
}
add_filter( 'dokan_seller_registration_field', 'add_custom_field_to_registration_form' );

This code will add a custom file field to the registration form. You can customize the field by using the various options available in the $fields array, such as label, placeholder, and required.

2. Next, you need to save the value of the custom field when the vendor submits the registration form. You can do this by using the dokan_new_seller_created action hook:

function save_custom_field_value( $seller_id ) {
   if ( ! isset( $_POST['custom_field'] ) ) {
      return;
   }

   $value = $_POST['custom_field'];

   update_user_meta( $seller_id, 'custom_field', $value );
}
add_action( 'dokan_new_seller_created', 'save_custom_field_value' );

This code will save the value of the custom field in the user meta data for the vendor.

3. Finally, you can display the value of the custom field in the vendor dashboard or on the vendor’s store page by using the get_user_meta() function:

$value = get_user_meta( $vendor_id, 'custom_field', true );

This code will retrieve the value of the custom field for the vendor with the ID $vendor_id.