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$20
How to append blog_id to echo [functions-defined-constant]?

I use 'constants' a lot. I set them in functions.php like ...
 define('mytheme_town', 'Orlando');
and then call them into the theme 
<?php echo mytheme_town ; ?>


But I need these to be blog-specific for multisite. So I thought it might be possible to append the current blog_id to the theme call and declare MultiSite-specific constants in functions.php? I don't know how to code that, but what I'm trying to achieve in the theme file this ... 

<?php echo [blog_id]_mytheme_town ; ?>
.....

For example

In functions.php // set constants for all multisites that use this theme

// awebsite.org : site_id=1
define('1_mytheme_town', 'Orlando');
define('1_mytheme_subject', 'food');
define('1_mytheme_p1', 'This is the first paragraph text');

// adifferentsite.com: site_id=2
define('2_mytheme_town', 'New York');
define('2_mytheme_subject', 'wine');
define('2_mytheme_p1', 'This is the first paragraph text');

// anothersite.net : site_id=3
define('3_mytheme_town', 'LA');
define('3_mytheme_subject', 'Donuts');
define('3_mytheme_p1', 'This is the first paragraph text');

In theme files Call the constants using the current blog_id like so ...

<?php echo [blog_id]_mytheme_town ; ?>

<?php echo [blog_id]_mytheme_subject ; ?>

<?php echo [blog_id]_mytheme_p1 ; ?>


I have been trying all day, but I'm just guessing and I don't really know what I am doing. Everything I have tried works, but it simply echos out a plain text version of the code

1_mytheme_town

and not the php constant that is defined in functions.php.

This question has been answered.

TheLoneCuber | 03/29/11 at 7:43am Edit

Previous versions of this question: 03/29/11 at 7:55am

(3) Possible Answers Submitted...

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  • avatar
    Last edited:
    03/29/11
    8:26am
    Daniele Raimondi says:

    You can get the blog ID from the $wbpd object, like so:

    <?php
    
global $wpdb;
    
$current_blog = $wpdb->blogid;
    
?>

    or could simple use

    global $blog_id;


    -------------------------------------------------------------------
    In your functions.php you can define your constants as you have already done, and then in your theme, make a call like this, using constant PHP function:

    <?php 
    
global $blog_id;
    
echo constant($blog_id.'_mytheme_p1');
    
?>

    Previous versions of this answer: 03/29/11 at 8:24am | 03/29/11 at 8:25am | 03/29/11 at 8:26am

    • 03/29/11 8:19am

      TheLoneCuber says:

      I have tried this approach unsuccessfully. It does not append the blog_id to the constant. It echos them separately and does not process them as a single php call. This might be due to the way I am calling it?

      This is what I've tried ....

      <?php global $blog_id; echo $blog_id; echo '_mytheme_town'?>


      But it literally echos the blog_id and echos the constant in text form (not processed php). This is what appears on the frontend ...
      1_mytheme_town



  • avatar
    Last edited:
    03/29/11
    9:17am
    Sébastien | French WordpressDesigner says:

    in your file functions.php :


    
global $blog_id;
    
if($blog_id==1) {
    
define('mytheme_town', 'Orlando');
    
define('mytheme_subject', 'food');
    
define('mytheme_p1', 'This is the first paragraph text');
    
}
    
elseif($blog_id==2) {
    
define('mytheme_town', 'New York');
    
define('mytheme_subject', 'wine');
    
define('mytheme_p1', 'This is the first paragraph text');
    
}
    
elseif($blog_id==3) {
    
define('mytheme_town', 'LA');
    
define('mytheme_subject', 'Donuts');
    
define('mytheme_p1', 'This is the first paragraph text');
    
}

    and in your theme
    <?php global $blog_id;
    
echo mytheme_town ; 
    
echo mytheme_subject ; 
    
echo mytheme_p1 ; ?>

    • 03/29/11 8:27am

      TheLoneCuber says:

      Would there be some performance issues with this method if there were 50+ blogs and therefore 50+ elseif's ?

    • 03/29/11 8:32am

      Sébastien | French WordpressDesigner says:

      no problem

    • 03/29/11 8:43am

      TheLoneCuber says:

      Is that how the if/elseif's work? If the blog id = 50 and I defined all 50 blog constants in ascending order in functions.php, then all the 49 elseif's get processed before it gets to elseif($blog_id==50)?

    • 03/29/11 8:47am

      Sébastien | French WordpressDesigner says:

      no, not really.
      There is one query processed, not 49

  • avatar
    Last edited:
    03/29/11
    8:32am
    AdamGold says:

    Try this:


    
$my_blog_id = get_current_blog_id();
    
define( $my_blog_id . '_constant', 'content' );

    • 03/29/11 8:34am

      AdamGold says:

      If it doesn't work, try this one:


      
global $current_site;
      
define( $current_site->id . '_constant', 'content' );

    • 03/29/11 8:35am

      AdamGold says:

      By the way, if you want to use $blog_id (which is also an option..):

      <?php
      
global $blog_id;
      
define( $blog_id . '_mytheme_town', 'Orlando' );
      
?>

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