29, May 2012

- PhP Manual

 
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- PhP Manual

Returns a list of response headers sent (or ready to send)
Network Functions
PHP Manual

headers_list

(PHP 5)

headers_list — Returns a list of response headers sent (or ready to send)

Description

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().

Return Values

Returns a numerically indexed array of headers.

Examples

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());

?>

The above example will output:

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"
}

See Also

Network Functions
PHP Manual
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