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1. www.php.net › manual › enPHP: apache_request_headers - Manual

   www.php.net › manual › en

   Fetch all HTTP request headers Notes ¶ Note: You can also get at the value of the common CGI variables by reading them from the environment, which works whether or not you are using PHP as an Apache module. Use phpinfo () to see a list of all of the available environment variables.

   • Getallheaders

     Fetches all HTTP headers from the current request. This...

   • Virtual

     virtual () is an Apache-specific function which is similar...

2. stackoverflow.com › questions › 541430How do I read any request header in PHP? - Stack Overflow

   stackoverflow.com › questions › 541430

   Feb 12, 2009 · How should I read any header in PHP? For example the custom header: X-Requested-With.

   • IF : you only need a single header, instead of all headers, the quickest method is:
   • $_SERVER['HTTP_X_REQUESTED_WITH']RFC3875 , 4.1.18: Meta-variables with names beginning with HTTP_ contain values read from the client request hea...
   • You should find all HTTP headers in the $_SERVER global variable prefixed with HTTP_ uppercased and with dashes (-) replaced by underscores (_). Fo...
   • Since PHP 5.4.0 you can use getallheaders function which returns all request headers as an associative array: var_dump(getallheaders());// array(...
   • Pass a header name to this function to get its value without using for loop. Returns null if header not found. /*** @var string $headerName case...
   • I was using CodeIgniter and used the code below to get it. May be useful for someone in future. $this->input->get_request_header('X-Requested-With');
   • strtolower is lacking in several of the proposed solutions, RFC2616 (HTTP/1.1) defines header fields as case-insensitive entities. The whole thing,...
   • if only one key is required to retrieved, For example "Host" address is required, then we can use apache_request_headers()['Host']So that we can...
   • To make things simple, here is how you can get just the one you want: Simple: $headerValue = $_SERVER['HTTP_X_REQUESTED_WITH'];or when you need t...

3. docs.phplang.net › en › functionPHP: apache_request_headers - Manual - docs.phplang.net

   docs.phplang.net › en › function

   Fetches all HTTP request headers from the current request. Works in the Apache, FastCGI, CLI, and FPM webservers.

4. www.creationdev.net › docs › phpfonction-apache-request-headers.php - creationdev.net

   www.creationdev.net › docs › php

   apache_request_headers 15 nov. 2018 44 fois (PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8) apache_request_headers — Récupère tous les en-têtes HTTP de la requête

5. nabilhassen.com › php-get-request-headersGet request headers in PHP - nabilhassen.com

   nabilhassen.com › php-get-request-headers

   Nov 27, 2025 · Learn how to read HTTP request headers in PHP using $_SERVER and getallheaders with concise, practical examples for real projects and quick debugging tips.

6. www.geeksforgeeks.org › php › how-to-read-anyHow to read any request header in PHP - GeeksforGeeks

   www.geeksforgeeks.org › php › how-to-read-any

   Jul 11, 2025 · Learn how to effectively read and process any request header in PHP with step-by-step guidance and examples on GeeksforGeeks.

7. People also ask

   What is a request header in PHP?

   • The question is asking for headers sent to the server. They are the request headers. The source and destination, when using terms like "sent", "out", "to", "from", is relative to the context in which those terms are used. In this answer, the example shows PHP running on the server. And, the OP's question also referenced server-side PHP.

   How do I read any request header in PHP? - Stack Overflow

   stackoverflow.com/questions/541430/how-do-i-read-any-request-header-in-php

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   How do I read a header in PHP?

   • You can't read "any header" in one operation, but you can read the incoming list of request headers and the current outgoing list of response headers separately. IF: you only need a single header, instead of all headers, the quickest method is: ELSE IF: you run PHP as an Apache module or, as of PHP 5.4, using FastCGI (simple method):

   How do I read any request header in PHP? - Stack Overflow

   stackoverflow.com/questions/541430/how-do-i-read-any-request-header-in-php

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   How to return all request headers as an associative array in PHP?

   • Since PHP 5.4.0 you can use getallheaders function which returns all request headers as an associative array:

   How do I read any request header in PHP? - Stack Overflow

   stackoverflow.com/questions/541430/how-do-i-read-any-request-header-in-php

   See all results for this question

   What is a HTTP request header?

   • The HTTP request header contains information in a text-record form, which includes many useful informations such as the type, capabilities, and version of the browser that generates the request, the operating system used by the client, the page that was requested, the various types of outputs accepted by the browser, and so on.

   How to read any request header in PHP - GeeksforGeeks

   www.geeksforgeeks.org/php/how-to-read-any-request-header-in-php/

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8. onlinephp.io › apache-request-headers › manualapache_request_headers - OnlinePHP.io Example

   onlinephp.io › apache-request-headers › manual

   Execute apache_request_headers Online. Info and examples on apache_request_headers PHP Function from Apache - Server Specific Extensions