How to implement php code on Open Graph

[SimonIoa]

I have created an Open Graph story.I am thinking of using the PHP SDK code provided by Facebook

here is the code

$response = $facebook->api(
'me/objects/rovespier:art',
'POST',
array(
'og:url' => http://samples.ogp.me/407704082730386,
'og:title' => Sample Art,
'og:type' => rovespier:art,
'og:image' => https://fbstatic-a.akamaihd.net/images/devsite/attachment_blank.png,
'og:description' => ,
'fb:app_id' => 34954712323

I dont know if there is more than this php code to implement to my site to show image, title etc

Where do i put the code? Anywhere i want?
this is the facebook code i use to share and like

    <script>
    window.fbAsyncInit = function() {
    FB.init({
    appId : '34954712323',
    xfbml : true,
    version : 'v2.1'
    });
    };
    (function(d, s, id){
    var js, fjs = d.getElementsByTagName(s)[0];
    if (d.getElementById(id)) {return;}
    js = d.createElement(s); js.id = id;
    js.src = "//connect.facebook.net/en_US/sdk.js";
    fjs.parentNode.insertBefore(js, fjs);
    }(document, 'script', 'facebook-jssdk'));
    FB.ui({
    method: 'share_open_graph',
    action_type: 'og.likes',
    action_properties: JSON.stringify({
    object:'https://developers.facebook.com/docs/',
    })
    }, function(response){});
    </script>
    <div class="fb-like" data-share="true" data-width="250" data-show-faces="true">
    </div>
    )
    );

I am trying to put my variable next to 'og:image' => https:'.$base_url.$profile_path.$row['profile_pic'];
and i make getting an error. So i know that this is wrong.

This is the http code i got from facebook

https://graph.facebook.com/me/objects/rovespier:art?
access_token=ACCESS_TOKEN&
method=POST&
object=%7B%22og%3Aurl%22%3A%22http%3A%5C%2F%5C%2Fsamples.ogp.me%5C%2F407704082730386%22%2C%22og%3Atitle%22%3A%22Sample+Art%22%2C%22og%3Atype%22%3A%22rovespier%3Aart%22%2C%22og%3Aimage%22%3A%22https%3A%5C%2F%5C%2Ffbstatic-a.akamaihd.net%5C%2Fimages%5C%2Fdevsite%5C%2Fattachment_blank.png%22%2C%22og%3Adescription%22%3A%22%22%2C%22fb%3Aapp_id%22%3A349547121879416%7D