Add OG meta

fv-og-meta.php

<?php

function fv_wp_head_og() {
	echo '<!-- fv_wp_head_og -->';
	global $photo_obj;
	
	// FIX for big images
	$thumb_size = array(
		'width' => 1400,
		'height' => 1000,
		'crop' => false,
	);
	$image = FvFunctions::getPhotoThumbnailArr($photo_obj, $thumb_size);	//'full'
	
	?>
	<meta name="description" content="<?php echo sanitize_text_field($photo_obj->name) . ' / ' . sanitize_text_field($photo_obj->description); ?>"/> 
	
	<meta property="og:title" content="<?php echo sanitize_text_field($photo_obj->name); ?> / HABITAT:AARHUS"/>
	<meta property="og:description" content="<?php echo sanitize_text_field($photo_obj->description); ?>"/>
	<meta property="og:site_name" content="HABITAT:AARHUS"/>
	<meta property="og:image" content="<?php echo $image[0] ?>"/>
	<meta property="og:url" content="http://www.habitataarhus.dk<?php echo $_SERVER['REQUEST_URI']; ?>"/> 
	
	<?php
}

function fv_wp_title( $title, $sep ) {
	global $photo_obj;
	
	if ( !is_object($photo_obj) ) {
		return $title;
	}		

	return sanitize_text_field($photo_obj->name) . ' / HABITAT:AARHUS';
}

function fv_init_wp_head_og() {
	
	global $photo_obj;
	
	if ( !is_object($photo_obj) ) {
		return false;
	}				
	
	add_action('wp_head', 'fv_wp_head_og', 0);			
	
	//remove_action('su_head', array('SU_OpenGraph', 'head_tag_output')); 
	
	global $seo_ultimate;
	remove_action( 'the_content', array( $seo_ultimate, 'template_head' ) );	
	
	remove_all_actions('su_head');   
	
}

if ( !empty($_GET['photo']) ) {
	add_action('init', 'fv_init_wp_head_og', 49);	 
	add_filter( 'wp_title', 'fv_wp_title', 99, 2 );
	
	global $photo_obj;
	
	$photo_id = (int)$_GET['photo'];
	global $photo_obj;
	$photo_obj = ModelCompetitors::query()->findByPK($photo_id ); 

}