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, PHP 7, PHP 8)
headers_list — Returns a list of response headers sent (or ready to send)
Descrizione
headers_list(): array
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().
Elenco dei parametri
Questa funzione non contiene parametri.
Valori restituiti
Returns a numerically indexed array of headers.
Esempi
Example #1 Example 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("Example-Test: foo");
/* Specify plain text content in our response */
header('Content-Type: text/plain; charset=UTF-8');
/* What headers are going to be sent? */
var_dump(headers_list());
?>Il precedente esempio visualizzerà qualcosa simile a:
array(3) {
[0]=>
string(19) "Set-Cookie: foo=bar"
[1]=>
string(17) "Example-Test: foo"
[2]=>
string(39) "Content-Type: text/plain; charset=UTF-8"
}
Note
Nota:
Gli header sono accessibili (e emessi nell'output) quando è in uso un SAPI che li supporta.
Vedere anche:
- headers_sent() - Checks if or where headers have been sent
- header() - Send a raw HTTP header
- setcookie() - Send a cookie
- apache_response_headers() - Estrae tutti gli header della risposta HTTP
- http_response_code() - Get or Set the HTTP response code
add a note
User Contributed Notes 3 notes
Anonymous ¶
12 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
$headers = php_sapi_name() === 'cli' ? xdebug_get_headers() : headers_list();
?>
SOLO2 ¶
12 years ago
Function to check if a particular header has been added to the list:
<?php
function header_sent($header) {
$headers = headers_list();
$header = trim($header,': ');
$result = false;
foreach ($headers as $hdr) {
if (stripos($hdr, $header) !== false) {
$result = true;
}
}
return $result;
}
?>
