php下获取http状态的实现代码

逐风整理了两种方式，大家可以自行参考/使用：

#方式一
$ch = curl_init('//www.jb51.net');
curl_setopt($ch, curlopt_returntransfer, 1);
curl_exec($ch);
echo curl_getinfo($ch, curlinfo_http_code); // 200
curl_close($ch);

方式二

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   
)   
*/