Funções para pegar dados de vídeos e de um canal no YouTube

functions.php

<?php

function youtube_view_count_channel_shortcode($params)
{
	$channelID = $params['id'];
	$json = file_get_contents("https://www.googleapis.com/youtube/v3/channels?part=statistics&id=" . $channelID . "&key=SUA-KEY");
	$jsonData = json_decode($json);
	$views = $jsonData->items[0]->statistics->viewCount;
	return number_format($views);
}
add_shortcode('youtube_view_count_channel', 'youtube_view_count_channel_shortcode');

function youtube_subscriber_count_channel_shortcode($params)
{
	$channelID = $params['id'];
	$json = file_get_contents("https://www.googleapis.com/youtube/v3/channels?part=statistics&id=" . $channelID . "&key=SUA-KEY");
	$jsonData = json_decode($json);
	$subscribers = $jsonData->items[0]->statistics->subscriberCount;
	return number_format($subscribers);
}
add_shortcode('youtube_subscriber_count_channel', 'youtube_subscriber_count_channel_shortcode');

function youtube_view_count_shortcode($params)
{
	$videoID = $params['id'];
	$json = file_get_contents("https://www.googleapis.com/youtube/v3/videos?part=statistics&id=" . $videoID . "&key=SUA-KEY");
	$jsonData = json_decode($json);
	$views = $jsonData->items[0]->statistics->viewCount;
	return number_format($views);
}
add_shortcode('youtube_view_count', 'youtube_view_count_shortcode');