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PHP

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


headers_list

(PHP 5)

headers_listReturns 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" } 

Notes

Note:

Headers will only be accessible and output when a SAPI that supports them is in use.

See Also



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