Get youtube video info and embed code from input youtube url. Can be easily modified to use different "part" queries... but I'm doing just the snippet and player ones here...

videoData.class.php

<?php
class videoData{

	static $videoId = '';
	static $videoData = array();
	static private $apiKey = '[YOUR_API_KEY_HERE]';
	static $url = 'https://www.googleapis.com/youtube/v3/videos?id=@@VIDEOID@@&part=snippet,player&key=@@APIKEY@@';
	static $lastURL = '';
	
	static function getIdFromURL($url){
		preg_match("/^(?:http(?:s)?:\/\/)?(?:www\.)?(?:youtu\.be\/|youtube\.com\/(?:(?:watch)?\?(?:.*&)?v(?:i)?=|(?:embed|v|vi|user)\/))([^\?&\"'>]+)/", $url, $possible_id);
		self::$videoId = $possible_id[1];
		return self::$videoId;
	}

	static function getId(){
		return self::$videoId;
	}

	static function fetchData(){
		try{
			$url = self::$url;
			$url = str_replace("@@VIDEOID@@", self::$videoId, $url);
			$url = str_replace("@@APIKEY@@", self::$apiKey, $url);
			$data = get_curl($url);
			self::$lastURL = $url;
		}catch(Exception $e){
			return $e->getMessage();
		}
		self::$videoData = json_decode($data, true, JSON_FORCE_OBJECT | JSON_NUMERIC_CHECK);
	}

	static function getData(){
		self::fetchData();
		return self::$videoData;
	}

}
?>