Facebook Comment Count

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I am a bit of an amateur when it comes to PHP and WordPress but I have rigged up the following code: 

function fb_comment_count($url = 'some url here') {
$filecontent = file_get_contents('https://graph.facebook.com/?ids=' . $url);
$json = json_decode($filecontent);
$count = $json->$url->comments;
if ($count == 0 || !isset($count)) {
    $count = 0;
}
echo $count;
}

What it does is it retrieves the comment count from the Facebook Graph and displays it on a page. For it to work, I have to manually declare the url for each call.

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What I’m having a hard time with, is setting it up so that when you call the function in the template, it defaults to the post’s permalink. I honestly have tried everything that has come to my mind.

get_permalink() doesn’t work when you declare the arguments in the function.

Any help would be GREATLY appreciated.
Thanks!

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3 comments

  1. Final version of code used:

        function fb_comment_count($link = 'link') {
global $post;
$url = 'https://graph.facebook.com/';
$posturl = get_permalink($post->ID);
$url .= $posturl;

$filecontent = wp_remote_retrieve_body(wp_remote_get($url, array('sslverify'=>false)));
$json = json_decode($filecontent);
$count = $json->comments;
if ($count == 0 || !isset($count)) {
    $count = 0;
}

$comments = $count;
if ($count == 1) {
    $comments .= ' Comment';
}
elseif ($count == 0) {
    $comments = 'Leave a Comment';
}
elseif ($count > 1) {
    $comments .= ' Comments';
}
if ($link == 'nolink') {
    echo $comments;
}
else {
    echo '<a href="'.$posturl.'#comments" title="Comments for '.$post->post_title.'">'.$comments.'</a>';
}
}

  2. Try this and see what it gives you:

    function fb_comment_count() {
global $post;
$url = get_permalink($post->ID);

$filecontent = file_get_contents('https://graph.facebook.com/?ids=' . $url);
$json = json_decode($filecontent);
$count = $json->$url->comments;
if ($count == 0 || !isset($count)) {
    $count = 0;
}
echo $count;
}

  3. Seems extremely complicated when you could just use this:

    <fb:comments-count href="<?php echo get_permalink($post->ID); ?>"></fb:comments-count> Comments