简单生活@NET

/**
 * Touch a remote url
 * Just do a get opration on a remote url LIKE TOUCH
 * @param string $url The remote url
 * @return boolean
 */
function rtouch($url){
 
	if (!$url) return false;
 
	$urls = parse_url($url);
	if ($urls['scheme'] != 'http') return false;
 
	$fp = fsockopen($urls['host'], 80, $errno, $errstr, 30);
 
	if ($fp) {
		$uri = (empty($urls['path']) ? '' : $urls['path']) . (empty($urls['query']) ? '' : '?'.$urls['query']) . @(empty($urls['fragment']) ? '' : '#'.$urls['fragment']);
		$out = "GET $uri HTTP/1.1\r\n";
		$out .= "Host: $urls[host]\r\n";
		$out .= "Connection: Close\r\n\r\n";
		fwrite($fp, $out);
		fclose($fp);
		return true;
	}
 
	return false;
}
 
//测试代码
if (rtouch('http://www.sina.com.cn')){
	echo '搞定';
else
	echo '搞不定';
exit;

/**
 * 这为了测试使用的文件代码,于要实现的功能无关
 * 保存为单独的文件，可以用来接收，测试Touch操作
 **/
 @error_reporting(0);
 @set_time_limit(0);
 @ignore_user_abort(true);
 sleep(10);
 $fp = fopen('output.txt','w');
 fwrite($fp,'完成');
 fclose($fp);
 exit;