url_checker.php

<?php
/*
Template Name: URLS
*/

$urls = 'http://google.com
http://31engine.com/weblogUpdates/1.cgi
http://zhuaxia.com/rpc/server.php';

// $skuList = explode('\n\r', $_POST['skuList']);

$urllist = explode("\n", $urls );
echo '<table><thead><tr><th>URL</th><th>Code</th><th>Message</th></tr></thead><tbody>';
		
foreach ( $urllist as $url ) {
	$response = wp_remote_head( $url );
	echo '<tr>';
		echo '<td>' . esc_url( $url ) . '</td>';
		if ( is_wp_error( $response ) ) {
			echo '<td>' . $response->errors[ 'http_request_failed' ] . '</td>';
			echo '<td>' . $response->errors[ 'http_request_failed' ][0] . '</td>';	
		} else {
			echo '<td>' . $response['response']['code'] . '</td>';
			echo '<td>' . $response['response']['message'] . '</td>';
		}
	echo '</tr>';
}
echo '</tbody></table>';