Google reviews WordPress short-code

Adds shortcode google_reviews google_places_id="" google_places_api_key="" (place inside brackets) that fetches business reviews from Google Places API, caches them for 24 hours.

Uses an open-source WooCommerce native CSS rule to display the star ratings.

add_shortcode( 'google_reviews', function( $atts ) {

	// Settings
	$default_atts = [ 'google_places_id' => '', 'google_places_api_key' => '' ];
	$atts = shortcode_atts( $default_atts, $atts, 'google_reviews' );

	// Check Cache
	$transient = 'ccom_g_reviews_' . substr( $atts['google_places_id'], -5 );
	$reviews = get_transient( $transient );
	$reviews = maybe_unserialize( $reviews );

	// Fetch Reviews
	if( ! $reviews ) {
		$url = sprintf(
			$atts['google_places_id'], $atts['google_places_api_key']
		$response = wp_remote_get( $url );
		$response['body'] = json_decode( $response['body'] );
		if( empty( $response['body']->result->reviews ) ) { return; }
		$reviews = $response['body']->result->reviews;
		set_transient( $transient, $reviews, 86400 );

	// Output
	shuffle( $reviews );
	<ul class="google_reviews">
		<?php foreach( $reviews as $row ) { ?>
			<img class="alignleft" alt="Avatar for <?php echo $row->author_name; ?>" src="<?php echo $row->profile_photo_url; ?>" />
			<a href="<?php echo $row->author_url; ?>" target="_blank"><?php echo $row->author_name; ?></a>
				<?php echo $row->relative_time_description; ?> on <?php echo date( 'm/d/Y', $row->time ); ?>
			<div class="star-rating" role="img" aria-label="Rated <?php echo $row->rating; ?> out of 5 stars">
				<span style="width: <?php echo ( $row->rating / 5 ) * 100; ?>%">
					Rated <strong class="rating"><?php echo $row->rating; ?></strong> out of 5
			<p><?php echo $row->text; ?></p>
		<?php } ?>
	$output = ob_get_contents();
	return $output;
} );
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