reactions.php

<?php
///////////////////////////////////////////
//            CONFIGURATION              //
//  Set the ID of the Live Video below,  //
//  along with your app's access token   //
///////////////////////////////////////////
if (isset($_GET['videoid'])){
	$videoid=$_GET['videoid'];
} else {
	$videoid="VIDEO_ID_HERE";        // The ID of the Live Video
}
$access_token="ACCESS_TOKEN_HERE";   // Your Facebook app's access token in the format 1111111111111111|X1xX11xX_XXXxXxXXX1xXXx1XXX

set_time_limit(128); // Increase the standard time limit

// Below is the CURL magic!
// Make sure you have CURL installed and working with PHP, otherwise 
// this page will be blank when opened in a browser
$ch = curl_init();
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_URL, 'https://graph.facebook.com/v2.8/?id='.$videoid.'&fields=reactions.type(LOVE).limit(0).summary(total_count).as(reactions_love),reactions.type(LIKE).limit(0).summary(total_count).as(reactions_like),reactions.type(ANGRY).limit(0).summary(total_count).as(reactions_angry),reactions.type(WOW).limit(0).summary(total_count).as(reactions_wow),reactions.type(HAHA).limit(0).summary(total_count).as(reactions_haha),reactions.type(SAD).limit(0).summary(total_count).as(reactions_sad)&access_token='.$access_token.'');
$result = curl_exec($ch);
curl_close($ch);

$obj = json_decode($result);

// If you haven't started your Live Stream yet (ie. you don't have a Video ID), comment out the below lines with // to display "0" for each result.
$love=$obj->reactions_love->summary->total_count;
$wow=$obj->reactions_wow->summary->total_count;
$haha=$obj->reactions_haha->summary->total_count;
$like=$obj->reactions_like->summary->total_count;
$angry=$obj->reactions_angry->summary->total_count;
$sad=$obj->reactions_sad->summary->total_count;

// just echo the JSON data if the json variable is set
if (isset($_GET['json'])){
	echo $result;
	die;
}

// If requesting an INDIVIDUAL reaction (ie. reaction variable is set in URL), display only the quantity of that specific reaction
if (isset($_GET['reaction'])){
	$reaction=$_GET['reaction'];
	switch ($reaction) {
		case "love":
			echo $love;
			break;
		case "wow":
			echo $wow;
			break;
		case "haha":
			echo $haha;
			break;
		case "like":
			echo $like;
			break;
		case "angry":
			echo $angry;
			break;
		case "sad":
			echo $sad;
			break;
	}
// Otherwise, if the reaction variable is NOT set in the URL, display the quantity of all reactions - this is good for testing purposes
} else {
	echo "LOVE: $love, WOW: $wow, HAHA: $haha, LIKE: $like, ANGRY: $angry, SAD: $sad";
}
?>