[PHP] サイトマップ（sitemap.xml等）を各検索エンジンに一括送信する関数

sitemap_send.php

<?php
function sitemap_send($urls=NULL){
	if(empty($urls)){
		return NULL;
	}
	
	$pings=array(
		'google'=>array(
			'ping'=>'http://www.google.com/webmasters/sitemaps/ping?sitemap=',
			'reg'=>'/successfully added/'
		),
		'bing'=>array(
			'ping'=>'http://www.bing.com/webmaster/ping.aspx?siteMap=',
			'reg'=>'/(ありがとうございました)/'
		),
		/* Not Active...?
		'msn'=>array(
			'ping'=>'http://webmaster.live.com/ping.aspx?siteMap',
			'reg'=>''
		),
		*/
		/* Need AppID
		'yahoo'=>array(
			'ping'=>'http://search.yahooapis.com/SiteExplorerService/V1/updateNotification?appid=[appID]&url=',
			'reg'=>''
		),
		*/
	);
	
	$urls=(is_array($urls)) ? $urls : array($urls);
	
	$mh=curl_multi_init();
	
	$arr=array();
	foreach($urls as $url){
		if(empty($url) || is_array($url) || strpos($url,'http')!==0){
			continue;
		}
		
		$arr[$url]=array();
		foreach($pings as $key=>$val){
			$arr[$url][$key]=curl_init($val['ping'].urlencode($url));
			curl_setopt($arr[$url][$key],CURLOPT_HEADER,0);
			curl_setopt($arr[$url][$key],CURLOPT_RETURNTRANSFER,1);
			curl_multi_add_handle($mh,$arr[$url][$key]);
		}
	}
	
	do{
		$status=curl_multi_exec($mh,$active);
	}while($status===CURLM_CALL_MULTI_PERFORM || $active);
	
	$results=array();
	foreach($arr as $url=>$sites){
		if(!is_array($sites)){
			continue;
		}
		
		$results[$url]=array();
		foreach($sites as $site=>$c){
			if(empty($c)){
				continue;
			}
			$content=curl_multi_getcontent($c);
			curl_multi_remove_handle($mh,$c);
			$results[$url][$site]=(!empty($content) && preg_match($pings[$site]['reg'],$content));
		}
	}

	curl_multi_close($mh);
	return $results;
}

/* example

sitemap_send('http://example.com/sitemap.xml');

OR

sitemap_send(array( 'http://example.com/sitemap.xml', 'http://example.com/sitemap2.xml' ));

*/
?>