excerpt of recent posts

Hi, I really can’t have this to work. I found the excerpt code part on the forum but it doesn’t work. Help?

<?php
	$args = array( 'numberposts' => '4' );
	$recent_posts = wp_get_recent_posts( $args );
	foreach( $recent_posts as $recent ):
		get_permalink($recent["ID"]);

?>
		<div class="col-md-3">
			<center>
				<i class="fa fa-microphone"></i>
				<img class="img-rect" width="160" height="100" alt="" src="/img/2.png">

				<h3> <?php echo $recent["post_title"] ?></h3>

				<p class="text-muted"><?php if( !empty($recent->post_excerpt) ) {
					the_excerpt();
				} else {
					echo wp_trim_words(get_the_content(), 20); }?></p>
			</center>
		</div>
<?php endforeach; ?>