Facebook Graph 2.9 Have Square Images - php

Question

I have a Facebook API generated feed on my website that shows the last post of whatever I posted on Facebook. In this case, it was an article I wrote about Launtua Island. When I visit my Facebook page, the image looks like this:
But when I visited my website, the image looks like this:
It appears Facebook is cropping my image, but I don't know how to prevent it. This is the code I'm using:
$feed = 'Feed Id';
$a_token = 'Secret Access Token';
$maximum = 1;
$url = "https://graph.facebook.com/v2.9/{$feed}/feed?access_token={$a_token}&limit={$maximum}";
$response = file_get_contents($url);
$facebookString = $response;
$facebookArray = json_decode($facebookString);
$array = array();
foreach ( $facebookArray->data as $each ) {
$each->message = preg_replace("/(https?:\/\/.*) ?$/", "<a target='_blank' href='$1'>$1</a>", $each->message);
$row = array();
$response = file_get_contents("https://graph.facebook.com/v2.9/{$each->id}/attachments?access_token={$a_token}");
$image = json_decode($response);
$src = $image->data[0]->media->image->src;
if ($src == '') {
$src = $image->data[0]->subattachments->data[0]->media->image->src;
}
$row['post'] = $each->message;
$row['image'] = $src;
$row['time'] = strtotime($each->created_time);
$array[] = $row;
}
$string = "";
foreach ($array as $entry) {
$string .= "<div class='post'>";
if ($entry['image'] != '') {
$string .= "<img src='{$entry['image']}'>";
}
$string .= "<p>" . $entry['post'] . "</p>";
$string .= "</div>";
}
echo $string;
There is a lot of similar posts to my problem, but I'm not sure this is the same issue (not asking for image when making request) or a different one.
It would be great if Facebook stopped changing their API all the time!
Any help would be appreciate.
Thank you.