当我打印时:
echo '<pre>';
print_r(getallheaders());
它提供输出
[Host] => abc.com
[User-Agent] => Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:51.0) Gecko/20100101 Firefox/51.0
[Accept] => text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
[Accept-Language] => en-US,en;q=0.5
[Accept-Encoding] => gzip, deflate
[Cookie] => someth
[Upgrade-Insecure-Requests] => 1
[Cache-Control] => max-age=0
[SM_TRANSACTIONID] => 000000000000000000000000b7857360-1499-58b735e6-68944700-eed22930b94f
[SM_SDOMAIN] => abc.com
[SM_REALM] => REALM-BEACONTRACK-DEV-Protect root
[SM_REALMOID] => 06-000cd148-15d2-18a7-a771-71810afc4027
[SM_AUTHTYPE] => Form
....... many more
[Accept] => text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
[Referer] => http://127.0.0.1:8000
[Accept-Encoding] => gzip, deflate, sdch, br
[Accept-Language] => en-US,en;q=0.8
[Cookie] => XSRF-TOKEN=eyJpdiI6Im1UZ012bXhRQ1VVdEUra1d3Yko4ZEE9PSIsInZhbHVlIjoidnFqN0l6VUVBVjdKd2hWUitHazhlTWN1Z2puSW1LMlZTTU4yYW1GcVwvQWg1aEpkNklZWUkranBIZ3R1UGoxUUdMU1VFWVEzekViWTluSkk1c0FjNlZ3PT0iLCJtYWMiOiIxNGFmMGE1OWQ3OWNlZWY1Y2E4OGQ4MzY1MDg3ZmM2MDY5NzVmYTI2YmE3MzA3YWU2M2U2YjkyOWEzZTMzYWFkIn0%3D; beaconTrack_session=eyJpdiI6ImVWazMyK2JLbXlrN0lxMEVEdE1pTlE9PSIsInZhbHVlIjoiSTdIbVkyWmROSDZBXC8xVmZJdHEycmgwOFpFUm1BNUtWVFNyQjF0MjY5TTV6Qkd1aUFGSEJBcmRrQ3hvM1BxVXdld0tjWlwvcVNEeXcwQmdjWW5yUFwvb1E9PSIsIm1hYyI6IjgzZjRiOGExODc2NmI3Y2JjNDY1MWViMThlZmE0ODlhYjMyYzllMTE1OTNhNjM1NWE1ZDc0NWViZDFkMjA3ZTIifQ%3D%3D
)
但是当我使用laravel函数打印时:
print_r($request->header());
或print_r($request->headers->all());
它永远不会在数组中打印出我需要的变量。它打印输出
Array
(
[host] => Array
(
[0] => abc.com
)
[connection] => Array
(
[0] => keep-alive
)
[cache-control] => Array
(
[0] => max-age=0
)
[upgrade-insecure-requests] => Array
(
[0] => 1
)
[user-agent] => Array
(
[0] => Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36
)
[accept] => Array
(
[0] => text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
)
[accept-encoding] => Array
(
[0] => gzip, deflate, sdch
)
[accept-language] => Array
(
[0] => en-US,en;q=0.8
)
[cookie] => Array
(
[0] => cookie
)
)
我如何打印laravel函数中的所有值与此
getallheaders()
相同?
答案 0 :(得分:4)
Laravel使用Symphony,它将所有标题值保存在子数组中,因此我们只需映射数组并将其取出:
$get_first = function($x){
return $x[0];
};
// Same as getallheaders(), just with lowercase keys
print_r(array_map($get_first, $request->headers->all()));
注意:所有键都是小写
答案 1 :(得分:2)
使用Laravel collections transform()
方法而非array_map
替代@Shedokan的答案:
$headers = collect($request->header())->transform(function ($item) {
return $item[0];
});
这样$headers
将成为一个集合,因此您可以使用toArray()
方法将其转换回数组。由于这是一个集合,因此它也可以访问任何其他集合方法。
答案 2 :(得分:0)
您可以使用
$header = app('request')->header('header_name', 'default_header_value');
在$request
不可用时可以使用它