How to get unique values from radio buttons inside a repeater?

• darrenbachan

• February 11, 2018 at 11:46 pm

I have a repeater with buttons inside, but I only want to get one instance of each for filtering buttons.

$all_attributes = array();
$filter_attributes = array();

	if( have_rows('applications', 350) ):

		$html_out = '';

		$html_out .= '<div id="applications">';
		
			$html_out .= '<div class="controls">';
	            while( have_rows('applications', 350) ): the_row(); 

					// vars
					$name = get_sub_field('application_name', 350);
					$field = get_sub_field_object('application_filters', 350);
					$filters = $field['value'];
					// $content = get_sub_field('content');
					// $link = get_sub_field('link');
					if($filters) {
						foreach( $filters as $filter ){
							array_push($all_attributes, $filter);
						}
					}

				endwhile;
				
				$filter_attributes = array_unique($all_attributes);
				
				$html_out .= '<button type="button" class="control" data-filter="all">All</button>';
				foreach( $filter_attributes as $filter_attribute ) {
					$filter = create_filter_class($filter_attribute);
					$html_out .= '<button type="button" class="control" data-filter=".' . $filter . '">' . $filter_attribute . '</button>';
				}
				
	        $html_out .= '</div>'; // controls
	        return $html_out;
	endif;

I’m getting this error though “Invalid argument supplied for foreach()”. Can I not do foreach’s on radio buttons?