getallheaders
This function is an alias for apache_request_headers() . Please read the apache_request_headers() documentation for more information on how this function works.
Parameters
This function has no parameters.
Return Values
An associative array of all the HTTP headers in the current request, or false on failure.
Changelog
| Version | Description |
|---|---|
| 7.3.0 | This function became available in the FPM SAPI. |
Examples
Example #1 getallheaders() example
foreach ( getallheaders () as $name => $value ) echo » $name : $value \n» ;
>
See Also
User Contributed Notes 9 notes
it could be useful if you using nginx instead of apache
if (! function_exists ( ‘getallheaders’ ))
<
function getallheaders ()
<
$headers = [];
foreach ( $_SERVER as $name => $value )
<
if ( substr ( $name , 0 , 5 ) == ‘HTTP_’ )
<
$headers [ str_replace ( ‘ ‘ , ‘-‘ , ucwords ( strtolower ( str_replace ( ‘_’ , ‘ ‘ , substr ( $name , 5 )))))] = $value ;
>
>
return $headers ;
>
>
?>
A simple approach to dealing with case insenstive headers (as per RFC2616) is via the built in array_change_key_case() function:
$headers = array_change_key_case(getallheaders(), CASE_LOWER);
There’s a polyfill for this that can be downloaded or installed via composer:
Beware that RFC2616 (HTTP/1.1) defines header fields as case-insensitive entities. Therefore, array keys of getallheaders() should be converted first to lower- or uppercase and processed such.
dont forget to add the content_type and content_lenght if your are uploading file:
function emu_getallheaders () <
foreach ( $_SERVER as $name => $value )
<
if ( substr ( $name , 0 , 5 ) == ‘HTTP_’ )
<
$name = str_replace ( ‘ ‘ , ‘-‘ , ucwords ( strtolower ( str_replace ( ‘_’ , ‘ ‘ , substr ( $name , 5 )))));
$headers [ $name ] = $value ;
> else if ( $name == «CONTENT_TYPE» ) <
$headers [ «Content-Type» ] = $value ;
> else if ( $name == «CONTENT_LENGTH» ) <
$headers [ «Content-Length» ] = $value ;
>
>
return $headers ;
>
?>
chears magno c. heck
apache_request_headers replicement for nginx
if (! function_exists ( ‘apache_request_headers’ )) <
function apache_request_headers () <
foreach( $_SERVER as $key => $value ) <
if ( substr ( $key , 0 , 5 )== «HTTP_» ) <
$key = str_replace ( » » , «-» , ucwords ( strtolower ( str_replace ( «_» , » » , substr ( $key , 5 )))));
$out [ $key ]= $value ;
>else <
$out [ $key ]= $value ;
>
>
return $out ;
>
>
?>
warning, at least on php-fpm 8.2.1 and nginx, getallheaders() will return «Content-Length» and «Content-Type» both containing emptystring, even for requests without any of these 2 headers. you can do something like
retrieve token from header:
function getAuthorizationHeader () $headers = null ;
if (isset( $_SERVER [ ‘Authorization’ ])) $headers = trim ( $_SERVER [ «Authorization» ]);
>
elseif (isset( $_SERVER [ ‘HTTP_AUTHORIZATION’ ])) $headers = trim ( $_SERVER [ «HTTP_AUTHORIZATION» ]);
>
elseif ( function_exists ( ‘apache_request_headers’ )) $requestHeaders = apache_request_headers ();
$requestHeaders = array_combine ( array_map ( ‘ucwords’ , array_keys ( $requestHeaders )), array_values ( $requestHeaders ));
if (isset( $requestHeaders [ ‘Authorization’ ])) $headers = trim ( $requestHeaders [ ‘Authorization’ ]);
>
>
function getBearerToken () $headers = getAuthorizationHeader ();
if (!empty( $headers )) if ( preg_match ( ‘/Bearer\s(\S+)/’ , $headers , $matches )) return $matches [ 1 ];
>
>
Due to the else part.
>else <
$out[$key]=$value;
All server Variables are added to the headers list, and that’s not the desired outcome.
- Apache Functions
- apache_child_terminate
- apache_get_modules
- apache_get_version
- apache_getenv
- apache_lookup_uri
- apache_note
- apache_request_headers
- apache_response_headers
- apache_setenv
- getallheaders
- virtual
Header in PHP: The Ultimate Guide to Header Function
PHP stands for Hypertext Preprocessor and is a server-side programming language that was created with web development in mind. It is open-source, which means you can download and use it for free. It’s incredibly easy to pick up and use. The files contain the “.php” extension.
Rasmus Lerdorf was the driving force behind the first version of PHP, as well as a contributor to succeeding versions. It is an interpreted language that does not necessitate the use of a compiler.
Many databases, including Oracle, Microsoft SQL Server, MySQL, PostgreSQL, Sybase, and Informix, can be combined with it.
It is used to regulate user access and hold a content management system like WordPress.
Example
Output
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What Is a Header in PHP? Explain With Syntax
The header in PHP is a PHP built-in function for sending a raw HTTP header. The HTTP functions are those that manipulate information sent by the webserver to the client or browser before it sends any further output. The header() function in PHP sends a raw HTTP header to a client or browser. Before HTML, XML, JSON, or other output is given to a browser or client, the server sends raw data as header information with the request (particularly HTTP Request). Headers in PHP contain additional details about the object delivered in the message body, as well as the request and response.
Syntax
void header( $header, $replace = TRUE, $http_response_code )
It includes a header string in the string. There are two types of header calls in general. One is a header that begins with the string «HTTP/» and is used to determine the HTTP status code to send. Another is the «Location,» which is required.
- replace: This is an optional parameter that specifies whether the header should add a new header or replace the previous one.
- http response code is an optional parameter that sets the HTTP response code to a specific value (available in PHP 4.3 and higher).
The header() method is a built-in function that allows you to deliver a raw HTTP header to a client. HTTP functions allow you to manipulate data supplied to the browser by the webserver before it sends any additional output. You must call it before any actual output is sent, whether from HTML tags, blank lines in a file, or a PHP file.
Example
header(«Expires: Sun, 22 Jun 1997 04:00:00 GMT»);
header(«Cache-Control: no-cache, must-revalidate»);
