Check if exists value in wp

ckvalueexists.php

$args = array(
			'post_type' => 'post',
			'meta_query' => array(
			   array(
			       'key' => 'post_url', // custom post type
			       'value' => $the_url_topic // value yg diinputkan
			   )
			),
			'fields' => 'ids' // id from wp
			);
			// perform the query
			$url_query = new WP_Query( $args );
			$query_url_ids = $url_query->posts;
			
			if ( ! empty( $query_url_ids ) ) {
				echo '<p class="warning-msg"><i class="icon icon-warning"></i> ';
				_e( 'Your url topic is exists !, please re-enter your url.', 'text_domain' );
				_e( 'The same post with the url above : ', 'text_domain' );
			  	$url_ids = $query_url_ids[0];
				echo '<a href="'.get_permalink( $url_ids ).'">'.get_permalink( $url_ids ).'</a>';
				echo '</p>';
			}