foreach() , array_walk() in the script - php

Question

I have work to used this script in my centos server, but when i try to execute it , i have this Problems Line's.
[27-Nov-2016 14:37:15 UTC] PHP Warning: array_walk() expects parameter 1 to be array, boolean given in /root/facebook-live-reactions/src/Facebook.php on line 48
[27-Nov-2016 14:37:15 UTC] PHP Warning: Invalid argument supplied for foreach() in /root/facebook-live-reactions/src/Renderer.php on line 22
This is the file what he have problem >>
Renderer.php
<?php
namespace FBReactions;
class Renderer {
private $image;
private $settings;
public function __construct($image, $settings) {
$this->image = $image;
$this->settings = $settings;
}
/*
* Adds reaction counts to an image
*/
public function drawReactionCount($reactions)
{
$reactionSettings = $this->settings['REACTION_SETTINGS'];
foreach ($reactions as $index => $reactionCount)
{
$this->image->text(
$reactionCount,
$reactionSettings['REACTIONS'][$index]['XPOS'],
$reactionSettings['REACTIONS'][$index]['YPOS'],
function ($font) use ($reactionSettings) {
$font->file($reactionSettings['FONT']['FAMILY']);
$font->size($reactionSettings['FONT']['SIZE']);
$font->color($reactionSettings['FONT']['COLOR']);
$font->align('center');
}
);
}
}
/*
* Draws the shoutout text to image
*/
public function drawShoutout($user, $shoutout)
{
$shout = "#{$user}, {$shoutout}";
$this->image->text(
$shout,
$this->settings['SHOUTOUT_SETTINGS']['SHOUTOUT_TEXT']['XPOS'],
$this->settings['SHOUTOUT_SETTINGS']['SHOUTOUT_TEXT']['YPOS'],
function ($font) {
$font->file($this->settings['SHOUTOUT_SETTINGS']['SHOUTOUT_TEXT']['FONT']['FAMILY']);
$font->size($this->settings['SHOUTOUT_SETTINGS']['SHOUTOUT_TEXT']['FONT']['SIZE']);
$font->color($this->settings['SHOUTOUT_SETTINGS']['SHOUTOUT_TEXT']['FONT']['COLOR']);
$font->align('left');
}
);
}
/*
* Draws the profile image onto the shoutbox
*/
public function drawProfileImage($filename, $xpos, $ypos)
{
$this->image->insert($filename, 'bottom-left', $xpos, $ypos);
}
/*
* I don't like this! Might be better to return $this->image instead
*/
public function save($filename)
{
return $this->image->save($filename);
}
}
Facebook.php Code:
<?php
namespace FBReactions;
class Facebook {
private $fb;
private $accessToken;
public function __construct($fb, $accessToken) {
$this->fb = $fb;
$this->accessToken = $accessToken;
}
public function reactionCount($objectID, $reactions) {
foreach ($reactions as $key => $position) {
$fields[] = "reactions.type({$key}).limit(0).summary(total_count).as({$key})";
}
$reactionParams = ['ids' => $objectID, 'fields' => join(',', $fields)];
$endpoint = '/?' . http_build_query($reactionParams);
$request = $this->fb->request('GET', $endpoint, [], $this->accessToken);
/*
* Fetch the reactions count from Facebook
*/
try {
$response = $this->fb->getClient()->sendRequest($request);
$reactions = json_decode($response->getBody(), true);
$reactions = current($reactions);
} catch (\Exception $e) {
// die('Error getting reactions: ' . $e);
return [];
}
/*
* We don't need the id element. Remove it.
*/
unset($reactions['id']);
/*
* We're only interested in the reaction count
*/
array_walk($reactions, function(&$reaction) {
$reaction = $reaction['summary']['total_count'];
});
return $reactions;
}
/*
* Fetch latest comments
*/
function comments($objectID)
{
$commentParams = ['filter' => 'stream', 'order' => 'reverse_chronological'];
$request = $this->fb->request(
'GET',
"/{$objectID}/comments?" . http_build_query($commentParams),
[],
$this->accessToken
);
try {
$response = $this->fb->getClient()->sendRequest($request);
return json_decode($response->getBody(), true)['data'];
} catch (\Exception $e) {
// die('Error getting comments: ' . $e);
return [];
}
}
/*
* Returns an array of comments that contains a specific keyword
*/
function commentsByKeyword($objectID, $keyword, $caseSensitive = false)
{
$comments = $this->comments($objectID);
return array_filter($comments, function ($comment) use ($keyword, $caseSensitive) {
$message = $comment['message'];
if ($caseSensitive) {
return strpos($message, $keyword) > -1;
} else {
return strpos(strtolower($message), strtolower($keyword)) > -1;
}
});
}
/*
* Downloads and saves public profile image
*/
function saveProfileImage($uid, $width, $height, $filename)
{
$profileImageParams = [
'width' => $width,
'height' => $height,
];
$endpoint = "http://graph.facebook.com/{$uid}/picture?" . http_build_query($profileImageParams);
copy($endpoint, $filename);
}
}
i well be thankful if any one help me in this case, i work in it two day's without any solution , i try many way to fixed it..
Thank you

Answer 1

You do current in Facebook.php, line 32:
$reactions = current($reactions);
It might the place when you get boolean instead of array: if $reactions array is empty current() method will return false and you will get a warning 'array_walk() parameter 1 to be array, boolean given'. To fix it, before doing current() you should check if $reactions array is not empty