WP: Three ways to display an image

page.php

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>

<?php // ACF
$image = get_field('extra_image');
var_dump($image);
?>
<img src="<?= $image['url']; ?>" alt="<?= $image['alt']; ?>">


<?php // FEATURED IMAGE >> IMAGE TAG
the_post_thumbnail();

// FEATURED IMAGE >> URL
if ( has_post_thumbnail()) {
	$thumbnail = wp_get_attachment_image_src( get_post_thumbnail_id(), 'large'); 
	echo $thumbnail[0];
}

?>


<?php endwhile; endif; ?>