Retrieving likes of Facebook Posts in php - php

Question

I am looking for a way to retrieve the number of likes of a Facebook post, based on its post_id. I got hold of a php code from this forum itself..and it's something like
<?php
function fetchUrl($url){
return file_get_contents($url);
}
$json_object = fetchUrl("https://graph.facebook.com/{post_id}/likes?access_token={token}&limit=5000000"); //
$feedarray = json_decode($json_object, true);
$likesNum = count($feedarray['data']); // return the number of items in `data` array
print $likesNum;
?>
But the problem is this method does not retrieve the total likes of a post, since likes are displayed in blocks of 1000, after which theres another link to a different page containing the next set of 1000 likes and so on.
Is there a way to get the total number of likes of a facebook post by a single query?

Answer 1

Add the summary flag ** summary=true**
"https://graph.facebook.com/{post_id}/likes?access_token={token}&summary=true"
{
"data": [
{
"id": "663342380429664",
"name": "Luis Mendoza"
},
{
"id": "1532100840406448",
"name": "Sakazuki Akainu"
},
{
"id": "780666205412913",
"name": "Joaito KoRn"
},
{
"id": "1060933433919925",
"name": "Adrian Sosa"
},
{
"id": "860704407276452",
"name": "Sarah Rosenstrauch"
},
{
"id": "1947974762009431",
"name": "David Prieto"
},
{
"id": "804864302928112",
"name": "Ronal Ortega"
},
{
"id": "1505075359814934",
"name": "Gonzalo Larzen"
},
{
"id": "1431207613804483",
"name": "Victor Clc"
},
{
"id": "508785009283633",
"name": "Rxdry EzDe Cerrx Mcmxii"
},
{
"id": "435355413265946",
"name": "Ángel Fernando Huillca Alonso"
},
{
"id": "163773913961445",
"name": "Pelado Miguel Pin Macias"
},
{
"id": "1479227465674392",
"name": "Releck Solitario"
},
{
"id": "161610054193539",
"name": "MD Sahin MD Sahin"
},
{
"id": "798431050242097",
"name": "Brian Nahuel"
},
{
"id": "624869574305480",
"name": "Saul Alfredo"
},
{
"id": "1642733362665392",
"name": "Junior Zurita"
},
{
"id": "134907406871404",
"name": "Wil Peña"
},
{
"id": "10153052770952668",
"name": "Miguel Peña Cáceres"
},
{
"id": "1461494580846182",
"name": "Darian Suarez"
},
{
"id": "365762500250317",
"name": "Igarashi Ganta"
},
{
"id": "750032685093387",
"name": "Camila Barbé"
},
{
"id": "781013541941152",
"name": "Gonzalo Nievas"
},
{
"id": "756520927743339",
"name": "Jonathan C. Duran Cuellar"
},
{
"id": "1504488093199860",
"name": "Maxi Russo"
}
],
"paging": {
"cursors": {
"before": "NjYzMzQyMzgwNDI5NjY0",
"after": "MTUwNDQ4ODA5MzE5OTg2MAZDZD"
},
"next": "https://graph.facebook.com/v2.3/1009501939072385/likes?access_token=TOKEN..."
},
"summary": {
"total_count": 4303
}
}