facetwp add span to labels

custom-hooks.php

<?php

/** adds a span to checkbox labels for styling **/
add_filter( 'facetwp_facet_html', function( $html, $args ) {

	if ( 'checkboxes' == $args['facet']['type']) {

		$pattern = '/<div class="facetwp-checkbox[^"]*" data-value="[^"]*">([^<]*) <span/';
		preg_match_all( $pattern, $html, $matches );

		if ( !empty($matches[1]) ) {
			foreach ( $matches[1] AS $label ) {
				$html = str_replace( '>' . $label . ' <span', '><span class="fwp_label">' . $label . '</span> <span', $html );
			}
		}
	}

	return $html;

}, 10, 2);

/** add span for styling to radio labels **/
add_filter( 'facetwp_facet_html', function( $html, $args ) {

	if ( 'radio' == $args['facet']['type']) {

		$pattern = '/<div class="facetwp-radio[^"]*"[^>]*>([^<]*)\s?</';
		preg_match_all( $pattern, $html, $matches );

		if ( !empty($matches[1]) ) {
			foreach ( $matches[1] AS $label ) {
				$html = str_replace( '>' . $label, '><span class="facetwp-radio-label">' . $label . '</span>', $html );
			}
		}
	}

	return $html;

}, 10, 2);