note that it does not return the status header
<?php
header('HTTP/1.1 301 Moved Permanently', true, 301);
header('foo: bar');
header('a: b');
header('colon less example');
print_r(headers_list());
?>
Array
(
[0] => X-Powered-By: PHP/5.4.7
[1] => foo: bar
[2] => a: b
)
headers_list
(PHP 5)
headers_list — Returns a list of response headers sent (or ready to send)
說明
array headers_list
( void
)
headers_list() will return a list of headers to be sent to the browser / client. To determine whether or not these headers have been sent yet, use headers_sent().
回傳值
Returns a numerically indexed array of headers.
範例
Example #1 Examples using headers_list()
<?php
/* setcookie() will add a response header on its own */
setcookie('foo', 'bar');
/* Define a custom response header
This will be ignored by most clients */
header("X-Sample-Test: foo");
/* Specify plain text content in our response */
header('Content-type: text/plain');
/* What headers are going to be sent? */
var_dump(headers_list());
?>
上例將輸出：
array(4) {
[0]=>
string(23) "X-Powered-By: PHP/5.1.3"
[1]=>
string(19) "Set-Cookie: foo=bar"
[2]=>
string(18) "X-Sample-Test: foo"
[3]=>
string(24) "Content-type: text/plain"
}
註釋
Note:
檔案標頭只會在SAPI支援時處理和輸出。
參見
- headers_sent() - Checks if or where headers have been sent
- header() - Send a raw HTTP header
- setcookie() - Send a cookie
- apache_response_headers() - Fetch all HTTP response headers
- http_response_code() - Get or Set the HTTP response code
add a note
User Contributed Notes 3 notes
Anonymous ¶
11 years ago
arnold at jasny dot net ¶
7 years ago
This function won't work for when you're running PHP from the command line. If will always return an empty array. This can be an issue when testing your project using PHPUnit or Codeception.
To solve this, install the xdebug extension and use `xdebug_get_headers` when on the cli.
<?php
$headers = php_sapi_name() === 'cli' ? xdebug_get_headers() : headers_list();
?>
SOLO2 ¶
11 years ago
Function to check if a particular header has been added to the list:
<?php
function header_sent($header) {
$headers = headers_list();
$header = trim($header,': ');
$result = false;
foreach ($headers as $hdr) {
if (stripos($hdr, $header) !== false) {
$result = true;
}
}
return $result;
}
?>
