Get share counts in PHP

share-counts.php

<?php

class SocialCount
{

	public static function getAll($link)
	{
		return self::getServices($link);
	}
	
	public static function getServices($link, $services='facebook,twitter,gplus')
	{
		$services = explode(',', $services);
		$r = (object)array();
		foreach ($services as $service)
		{
			if ($service=='facebook') $r->facebook = self::getFacebook($link);
			elseif ($service=='twitter') $r->twitter = self::getTwitter($link);
			elseif ($service=='gplus') $r->gplus = self::getGplus($link);
		}
		return $r;
	}

	public static function getFacebook($link)
	{
		$link = urlencode($link);
		$data = @file_get_contents("http://graph.facebook.com/?id=$link");
		
		$json = @json_decode($data, true);
		if (!$json) return 0;
		
		$count = $json["shares"];
		return $count ? $count : 0;
	}

	public static function getTwitter($link)
	{
		$link = urlencode($link);
		$data = @file_get_contents("http://urls.api.twitter.com/1/urls/count.json?url=$link");
		
		$json = @json_decode($data, true);
		if (!$json) return 0;
		
		$count = $json["count"];
		return $count ? $count : 0;
	}

	public static function getGplus($link)
	{
		$ch = curl_init();  
		curl_setopt($ch, CURLOPT_URL, "https://clients6.google.com/rpc?key=AIzaSyCKSbrvQasunBoV16zDH9R33D88CeLr9gQ"); 
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, '[{"method":"pos.plusones.get","id":"p","params":{"nolog":true,"id":"'.$link.'","source":"widget","userId":"@viewer","groupId":"@self"},"jsonrpc":"2.0","key":"p","apiVersion":"v1"}]');
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
		curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-type: application/json'));
		$data = curl_exec($ch);
		curl_close ($ch);
		
		$json = @json_decode($data, true);
		if (!$json) return 0;
		
		$count = $json[0]['result']['metadata']['globalCounts']['count'];
		return $count ? $count : 0;
	}
	
	public static function getYoutube($user)
	{
		$link = urlencode($link);
		$data = @file_get_contents("http://gdata.youtube.com/feeds/api/users/$user?alt=json");

		$json = @json_decode($data, true);
		if (!$json) return 0;
		
		$count = $json['entry']['yt$statistics']['subscriberCount'];
		return $count ? $count : 0;
	}
	
};


/* 
Simple Usage:

$count = SocialCount::getServices('http://google.it', 'twitter,facebook');
echo "Twitter: {$count->twitter}, ";
echo "Facebook: {$count->facebook}";

*/