need a php guru help me out with dynamically adding og tags

[glens1234]

Hi.

My client wants specific images to be shared on facebook. I have tried using a plugin to do this but i need to home page og tags to be different from the rest. Now, im not php guy so i dont really know what im doing. Here is what i have so far...

Code: Select all

 <?php
$url = JURI::current();
$html = file_get_contents($url);
$doc = new DOMDocument();
@$doc->loadHTML($html);
$doc = $doc->getElementById('content');  
$images = $doc->getElementsByTagName('img');

foreach ($images as $image) {
$src = $image->getAttribute('src');
echo '<meta property="og:image" content="$src\n" />';
} 
?>

However, when i try on my local host i get nothing. By that i mean the page just hangs. Is this because the file_get_contents() function is trying to pull to pull the whole page in?

I have no idea.
Your advice will be greatly appreciated.