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frm_order_lookup_options

Last Updated: July 11, 2022

Knowledge Base → Extend Formidable Forms → Formidable Hooks - for Developers → Field Options and Values → frm_order_lookup_options
Heads up!
This article contains PHP code and is intended for developers. We offer this code as a courtesy, but don't provide support for code customizations or 3rd party development.

This hook allows you to modify the order of options in a Lookup field.

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Usage

add_filter('frm_order_lookup_options', 'frm_set_custom_lookup_order', 20, 2);

Parameters

  • $values (array): All of the options in the Lookup field.
  • $order (string): The order selected in the Lookup field's options.

Examples

Basic example

The following is a basic example that shows how you can modify the order of options in a Lookup field.

add_filter('frm_order_lookup_options', 'frm_set_custom_lookup_order', 20, 2);
function frm_set_custom_lookup_order( $values, $order ) {
    if ( $order == 'ascending' ) {
       sort( $values );
    }
    return $values;
}

Order dates in lookup

If you are using Date fields in your Lookup field, you can use this code example to sort the lookup options by ascending date order.

add_filter( 'frm_order_lookup_options', 'order_lookup_date_options' );
function order_lookup_date_options( $options ) {
	usort( $options, 'date_sort' );
	return $options;
}
function date_sort($a, $b) {
    return strtotime($a) - strtotime($b);
}

To switch to descending order, reverse the date sort function to:

strtotime($b) - strtotime($a);
  • Usage
  • Parameters
  • Examples
    • Basic example
    • Order dates in lookup
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