Display different array elements in a loop

Question

I have an array of objects:

Array
(
    [0] => stdClass Object
        (
            [id] => 24
            [ban_id] => 163
            [ban_url] => http://www.website.com/wp-content/uploads/2014/04/72890.jpg
        )

    [1] => stdClass Object
        (
            [id] => 25
            [ban_id] => 162
            [ban_url] => http://www.website.com/wp-content/uploads/2014/04/46860.jpg
        )

    [2] => stdClass Object
        (
            [id] => 26
            [ban_id] => 169
            [ban_url] => http://www.website.com/wp-content/uploads/2014/04/46871.jpg
        )

)

I also have a Wordpress loop:

$count = 0;
while ( have_posts() ) : the_post();
   $count++;
   $show_ad = $count%3 == 0;
   if ( $show_ad ):
      echo '<img src="..." alt="" />';
   endif;
endwhile;

I would like to display one (or even more, depends on the user's choice) of the images if $show_ad is equal to true (every 3 posts in this case).

For example, 1 different image every 3 posts :

[Wordpress POST 1]
[Wordpress POST 2]
[Wordpress POST 3]
   [Image 0]
[Wordpress POST 1]
[Wordpress POST 2]
[Wordpress POST 3]
   [Image 1]
[Wordpress POST 1]
[Wordpress POST 2]
[Wordpress POST 3]
   [Image 2]
[Wordpress POST 1]
[Wordpress POST 2]
[Wordpress POST 3]
   [Image 0]
...

Or another example, 2 different images every 3 posts :

[Wordpress POST 1]
[Wordpress POST 2]
[Wordpress POST 3]
   [Image 0]
   [Image 1]
[Wordpress POST 1]
[Wordpress POST 2]
[Wordpress POST 3]
   [Image 2]
   [Image 0]
[Wordpress POST 1]
[Wordpress POST 2]
[Wordpress POST 3]
   [Image 1]
   [Image 2]
[Wordpress POST 1]
[Wordpress POST 2]
[Wordpress POST 3]
   [Image 0]
   [Image 1]
...

Any help will be greatly appreciated.

Yes they do represent the images (Image 1, Image 2, Image 3...) — Mooncake
– Mooncake, Commented Apr 25, 2014 at 14:07
Would you like to show a random ad from your list of objects? — Goku Nymbus
– Goku Nymbus, Commented Apr 25, 2014 at 14:39
@battletoilet in fact, I have a wordpress page that contains a number of posts (see the while statement), I want to show the first ad after the 3rd post, the 2nd ad after the 6th post and so on... — Mooncake
– Mooncake, Commented Apr 25, 2014 at 15:53

Goku Nymbus · Accepted Answer · 2014-04-25 16:08:25Z

1

After reviewing your response, i believe the best way to answer your question is to create an incremental variable as well for your banner ads.

Review the following changes to your while loop.

$count = 0;
$banner_count = 0;
while ( have_posts() ) : the_post();
   $count++;
   $show_ad = $count%3 == 0;
   if ( $show_ad ):
      //I dont know the name of the banner object so i gave it $banner_object
      $banner_url = $banner_object[$banner_count]->ban_url;
      echo '<img src="' .$banner_url .'" alt="" />';

      //Increment Banner
      $banner_count++;

   endif;

Hope that helps! Let me know if your looking for something else. If you only have a certain amount banners, then you may want to reset banner_count when it reaches the end of your banners object. See code below

$count = 0;
$banner_count = 0;
while ( have_posts() ) : the_post();
   $count++;
   $show_ad = $count%3 == 0;
   if ( $show_ad ):

      $banner_url = $banner_object[$banner_count]->ban_url;
      echo '<img src="' .$banner_url .'" alt="" />';

      //Increment Banner
      $banner_count++;

      //If reached the end of the banner count
      if($banner_count > count($banner_object)) { $banner_count = 0; }

   endif;

edited Apr 25, 2014 at 16:08

answered Apr 25, 2014 at 16:02

Goku Nymbus

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4 Comments

Mooncake Over a year ago

And if I have 2 banners to show every 3 posts? how can I do?

Goku Nymbus Over a year ago

Whats the condition for showing 3 banners? And will all 3 banners display in one iteration of the while loop?

Mooncake Over a year ago

Yes they will display in one iteration. The condition is a variable. For example $nbrBan = 1; or $nbrBan = 2; or $nbrBan = 3;

Mooncake Over a year ago

Thanks for putting me in the right direction, everything works well but I had to change the last conditional statement from > to >= otherwise I had an undefined offset error.

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