Question

I’m trying to get Facebook’s meta tags from my HTML.

I’m using simple html dom to get all html data from the site.
I’ve tried with preg_replace, but without luck.

I want for example to get the content of this fb meta tag:

<meta content="IMAGE URL" property="og:image" />

Hope someone can help! 🙂

Answer 1

I Was going to suggest to use get_meta_tags() but it seems to not work (for me) :s

<?php
$tags = get_meta_tags('http://www.example.com/');
echo $tags['og:image'];
?>

But I would rather suggest using DOMDocument anyways:

<?php
$sites_html = file_get_contents('http://example.com');

$html = new DOMDocument();
@$html->loadHTML($sites_html);
$meta_og_img = null;
//Get all meta tags and loop through them.
foreach($html->getElementsByTagName('meta') as $meta) {
    //If the property attribute of the meta tag is og:image
    if($meta->getAttribute('property')=='og:image'){ 
        //Assign the value from content attribute to $meta_og_img
        $meta_og_img = $meta->getAttribute('content');
    }
}
echo $meta_og_img;
?>

Hope it helps