Reply To: How to sort/order select values from ACF field

• 4colls15

• January 4, 2015 at 2:43 am

Ok I think I’ve solved the solution (thanks to James from support too), leaving the answer here for anyone else, I used the documentation here to support it and :

Doc

In the ACF back-end I changed the choices like this:

January : January to 1 : January
February: February to 2 : February

Changing the key to a numeric value for sorting later. Now in the code I did this:

<?php 
	$args = array(
		'post_type' => 'activities',
		'posts_per_page'   => -1
	);
	$query = new WP_Query( $args );
?>

<?php

	$data;

	// Create array of posts and fields
	$myposts = get_posts( $args ); 
	foreach ( $myposts as $key => $post ) : setup_postdata( $post );
		
		$data['locations'][] = get_field('location');
		$data['activity'][] = get_field('activity_type');
		$data['difficulty'][] = get_field('difficulty');
		// To sort months by the key value (not the label) get the field object - choice
		// then grab the values like above
		$monthField = get_field_object('availability');
		$monthValue = get_field('availability');

		// Get months, iterate through the choices
		foreach($monthField as $month) {
			$monthField['choices'][$monthValue] = $month;
			
		}
		
	endforeach;

	
	// Omit duplicate results
	foreach($data as $key => $value) {
		$data[$key] = array_unique($data[$key]);
	}
	
	// sorted by alphabet
	natsort($data['locations']);
	natsort($data['difficulty']);
	natsort($data['activity']);
	// sorted by the key
	ksort($monthField['choices']);

	wp_reset_postdata();
?>

And the html:

	<select name='month'>
				<option value='' disabled selected>Choose Month</option>
				<?php
					foreach($monthField['choices'] as $month) {
						echo "<option value='{$month}'>{$month}</option>";
					}
				?>
			</select>

Using the field object and using ksort solved the problem here, tested and seems to work well.