Excerpt

Hello guys,

I would like filter meta_description by filter the_excerpt but it did work.. Could you please help me on that ?
Do you have any way to filter meta-description; i would like delete the first tag of the content.

Below my code, it works on the blog page (where i have a view on all my post) but not on each post !

function override_excerpt( $content ) {
	$raw_excerpt = $content;
	if( '' == $content ) {
			$content = get_the_content();
			$regex = '/(<div class=\"intuitioncompanydescription\">(.*?)<\/div>(.*?)<h3>Poste<\/h3>)/s';
			$content = preg_replace ( $regex, '', $content );
	}
	return apply_filters ('wp_trim_excerpt', $content, $raw_excerpt );
}

remove_filter('get_the_excerpt', 'wp_trim_excerpt');
add_filter('get_the_excerpt', 'override_excerpt', 1); 

The page I need help with: [log in to see the link]