php下获取http状态的实现代码

　　#方式一

　　$ch = curl_init('http://www.glzy8.com');

　　curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

　　curl_exec($ch);

　　echo curl_getinfo($ch, CURLINFO_HTTP_CODE); // 200

　　curl_close($ch);

　　print_r(

　　get_headers('http://www.baidu.com')

　　);

　　#返回以下内容：

　　/*

　　Array

　　(

　　[0] => HTTP/1.1 200 OK

　　[1] => Date: Sun, 04 May 2014 03:43:04 GMT

　　[2] => Content-Type: text/html; charset=utf-8

　　[3] => Connection: Close

　　[4] => Vary: Accept-Encoding

　　[5] => Set-Cookie: BAIDUID=4977AF4FB1E9A5D13C79939E28D92161:FG=1; expires=Thu, 31-Dec-37 23:55:55 GMT; max-age=2147483647; path=/; domain=.baidu.com

　　[6] => Set-Cookie: BDSVRTM=0; path=/

　　[7] => Set-Cookie: H_PS_PSSID=4681_1465_5224_6023_4759_6018_6257_6313_6328_6269; path=/; domain=.baidu.com

　　[8] => P3P: CP=" OTI DSP COR IVA OUR IND COM "

　　[9] => Cache-Control: private

　　[10] => Expires: Sun, 04 May 2014 03:42:09 GMT

　　[11] => X-Powered-By: HPHP

　　[12] => Server: BWS/1.1

　　[13] => BDPAGETYPE: 1

　　[14] => BDQID: 0x9acb602d00001922

　　[15] => BDUSERID: 0

　　)

　　*/