Title: include files into header.php?
Last modified: August 19, 2016

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# include files into header.php?

 *  Resolved [marcc1](https://wordpress.org/support/users/marcc1/)
 * (@marcc1)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/)
 * Hi,
    I want to include a ads.php file into my header.php.
 * ads.php determines which page is actually shown and uses a variable $adcode.
 * header.php & sidebar.php are included in index.php
 * in sidebar.php $adcode is echoed.
 * but this does not work!? Any hints or other solutions?
 * thanks!

Viewing 14 replies - 1 through 14 (of 14 total)

 *  [drmanry](https://wordpress.org/support/users/drmanry/)
 * (@drmanry)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1074872)
 * As long as ads.php is in the same directory as index.php, this should work:
 * `<?php include("ads.php"); ?>`
 *  Thread Starter [marcc1](https://wordpress.org/support/users/marcc1/)
 * (@marcc1)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1074883)
 * Thanks for this amazing hint. Sorry but i know how to include files =)
 * I guess it’s not possible to use a variable through so many file!?
 * ads.php
    – if is_page … $ads = ‘xxx’
 * sidebar.php
    – echo $ads
 * header.php
    – include(‘ads.php’)
 * index.php
    – include(‘header.php’) – include(‘sidebar.php’)
 * i get no output…
 *  [Oren Yomtov](https://wordpress.org/support/users/ornani/)
 * (@ornani)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1074885)
 * Maybe you need to use [PHP global variables](http://il.php.net/manual/en/language.variables.scope.php).
 *  [Mark / t31os](https://wordpress.org/support/users/t31os_/)
 * (@t31os_)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1074893)
 * You can’t pass variables across php files like that…
 * If you want to pass information along to another PHP file, you’ll need to include
   something in the query string that requests the file, use a session, or use globals,
   or any other way that does the job…
 * Using a query string would be the most sensible option in my opinion…
 * If you have no idea what i’m talking about, it’s time to get googling and reading
   up…
 * If the files are required on the page, use require, or require_once … or if you
   need an include and you only need to include the file once in the page, then 
   use include_once ….
 * Quick example regarding the query string… (this should make sense although only
   an example).
 *     ```
       <?php
       if(isset($something)) {
        require_once('myfile.php?example='.$something.'');
       }
       ?>
       ```
   
 * Then in your file, you check the request to the file. Using the example above,
   you’d be checking the GET request..
 *     ```
       <?php
       if(isset($_GET['example'])) {
        $somevar = $_GET['example'];
   
         do some code, referencing $somevar, etc etc.....
   
       }
       ?>
       ```
   
 * This will not fully suit what you posted, but assuming you can understand what
   i’ve posted above i’m sure you’ll take something away from it…
 * Regarding globals, i’d say avoid using them unless you absolutely need to. Not
   the same as REGISTER GLOBALS (incase anyone was reading thinking i had the wrong
   end of the stick), which is another kettle of fish, but i think using a global
   for the task you have in mind, is … perhaps overkill… and unrequired….
 *  Thread Starter [marcc1](https://wordpress.org/support/users/marcc1/)
 * (@marcc1)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1074915)
 * I have several ad places in different php files, so my idea was to determine 
   the actual page once and then set all adcodes.
 * thanks [@t31os_](https://wordpress.org/support/users/t31os_/), I will give it
   a try.
 *  Thread Starter [marcc1](https://wordpress.org/support/users/marcc1/)
 * (@marcc1)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1074969)
 * using a query string is not the perfect solution I dreamed of..
    with a query
   string I have to do the same query more than once..
 * I want to determine which one is the actual page (just once) and then place the
   right ads..
 *  [Mark / t31os](https://wordpress.org/support/users/t31os_/)
 * (@t31os_)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1075067)
 * If you change the query string dynamically you avoid having to do it multiple
   times…
 * My example shows a basic example of doing so…
 * You’d use…
 * `include('somefile.php');`
 * In two places, once in the sidebar, once in the header…
 * In your header check if you’re on a page, if you are grab some info about the
   page, be it the title, the ID, whatever you like, pass this along to the include
   as part of the include query string…
 * Then in your ads file, check if a query string exists, if it does, then display
   your related set of ads, if not, include some default ones… The ads change depending
   on the query string, which itself will change depending on the value of the info
   passed into the string.
 * Of course if you want to pass the variables around (to make it easier) then refer
   to globals posted earlier…
 *  Thread Starter [marcc1](https://wordpress.org/support/users/marcc1/)
 * (@marcc1)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1075149)
 * Not exactly..
 * My idea was do include the ads file once determine the page and save 3 variables(
   e.g. $adsleft, $adsright, $adsbottom)
 * ads.php:
 *     ```
       if page id = 1
       $adsleft = adsleft_code
       $adsright = adsright_code
       $adsbottom = adsright_code
   
       if page id = 2
       $adsleft = adsleft_code
       $adsright = adsright_code
       $adsbottom = adsright_code
   
       if page id = 3
       $adsleft = adsleft_code
       $adsright = adsright_code
       $adsbottom = adsright_code
       ```
   
 * In your case with a query string it would do the code above about 3 or more times
   and maybe with some more loops to determine the ads location.
 * I use ads on every single page so maybe its the best solution to use global variables
   even if its not as nice as other solutions..!?
 *  [Mark / t31os](https://wordpress.org/support/users/t31os_/)
 * (@t31os_)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1075153)
 * I think you’re misunderstanding what i’m saying, because what i’ve posted does
   not loop anything… you get one result… not multiple results…
 * However this depends how you code your ads file…
 * You seem to be over-complicated what should be relatively simple…
 * Do your page detection in the file you include the ads.php in…
 * If no value is passed to the include then have the ads file display a default
   set of information/code…
 * Get rid of the > if page id < stuff in the ads file… and replace that with code
   to check the request to the file… as per my previous example…
 * Do you want a more detailed example?
 *  Thread Starter [marcc1](https://wordpress.org/support/users/marcc1/)
 * (@marcc1)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1075156)
 * I am going to do some test stuff and come back to you soon 🙂
 * but you can also give me a more detailed example!
 *  Thread Starter [marcc1](https://wordpress.org/support/users/marcc1/)
 * (@marcc1)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1075160)
 * Once more…
 * I got those files:
 * index.php
    – includes header.php – includes sidebar.php – includes footer.php
 * I use ads in the following files:
    index.php (1 ad) sidebar.php (2 ads) footer.
   php (1 ad)
 * Your idea is now to include in these files the ads.php like:
 * include(‘ads.php?page=category 1&adlocation=footerAds’);
 * right?
 * in ads.php I get “category 1” as actual page and the ad place “footerAds” with
   $_GET[‘page’].
    which looks like
 * if(isset($page)) {
    $page = $_GET[‘page’]; $adplace = $_GET[‘location’];
 *  if($page == “My Category #1”)
    { if($adplace == “footerAds”) { $footerAds = 
   footer_ads_code } if($adplace == “indexAds”) { $indexAds = index_ads_code } }}
 * and this for every single page, ad and adplace!?
 *  Thread Starter [marcc1](https://wordpress.org/support/users/marcc1/)
 * (@marcc1)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1075165)
 * tell me you icq/msn/skype and i will contact you… think its much faster…
 *  [Mark / t31os](https://wordpress.org/support/users/t31os_/)
 * (@t31os_)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1075168)
 * Essentially, yes ….
 * but grab the page or category before the include…, then pass that along as part
   of the include path / query string…
 * It really depends on exactly what you want to achieve…
 * You could do…
 * `include('file.php?ads='.$somecheckvar.'');`
    `include('file.php?placement=sidebar');``
   include('file.php?placement=footer');`
 * Before the includes, check if it’s a page, category, post, whatever then assign
   that to $somevarcheck …
 * You only have 3 cases to match in your ads file.. (of course rename my examples
   where appropriate)…
 * You can avoid huge amounts of IF/ELSE’ing by using switch and case…
    [http://uk3.php.net/manual/en/control-structures.switch.php](http://uk3.php.net/manual/en/control-structures.switch.php)
 * It’s for you decide which approach suits the task though. So you can proberly
   ignore me now, and just do what works best for you… 😉
 *  Thread Starter [marcc1](https://wordpress.org/support/users/marcc1/)
 * (@marcc1)
 * [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1075188)
 * Solution: [http://wordpress.org/support/topic/167922](http://wordpress.org/support/topic/167922)

Viewing 14 replies - 1 through 14 (of 14 total)

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 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 14 replies
 * 4 participants
 * Last reply from: [marcc1](https://wordpress.org/support/users/marcc1/)
 * Last activity: [17 years ago](https://wordpress.org/support/topic/include-files-into-headerphp/#post-1075188)
 * Status: resolved

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