tag makes something happen in single post HOW TO ?

is_tag is one way to do it. Another way would be to create a template called tag-dog.php.

the is_tag does not work is there a reason why it could not work in the single post?

Hard to say since I have no idea what your code looks like. It would probably be easier to create a template such as tag-dog.php.

https://codex.www.ads-software.com/images/1/18/Template_Hierarchy.png

Hi ghp,

I think the reason is_tag does not work for you is because that function is intended to detect whether or not the page being viewed is an archive page for a specific tag/all-tags…

In order to achieve what you’re wanting to do, you’ll need to use the get_the_tags() function and then evaluate whether the desired term is contained in the list of returned tags.

You might want to write a custom function in your theme’s functions.php file to handle this. Here is the func ref for get_the_tags():
https://codex.www.ads-software.com/Function_Reference/get_the_tags

i tried with this piece of code

<?php if (is_tag(‘peep’)) { ?>
EXTRA INFO

<?php } elseif (is_tag(‘batman’)) { ?>
BATMAN

<?php } elseif (is_tag(‘lost’)) { ?>
LOST

<?php } else { ?>
ELSE

<?php } ?>

And it just seems to always take the else part.

I don’t really know how to do to much in php and you totally lost me with the tag-dog.php part as i don’t have a clue how to do something like that

ghp, see my earlier post… is_tag() is not intended to be used in the way you are looking for, that’s why you’re only getting the “else” response.

you’ll need to use something like this:

<?php
$post_tags = get_the_tags();
$tag_array = array();
foreach($post_tags as $tag) {
  $tag_array[] = $tag->name;
}
if(in_array('dog',$tag_array) !== FALSE) {
//show dog tag related code
} else if(in_array('cat',$tag_array) !== FALSE) {
//show cat tag related code
} else if(in_array('pig',$tag_array) !== FALSE) {
//show pig tag related code
} else {
//none of your special tags were found
}
?>

I haven’t had a chance to test this code as I’ve written it, but that should get you rolling in the right direction. I’ve used this before to show tag-specific opt-in forms to readers on a clients blog…
I hope this helps!

-greg

the is_tag does not work is there a reason

as @datdesignguy already said, is_tag() only works to identify a tag archive page;
to check for tags in a post, try has_tag()
https://codex.www.ads-software.com/Function_Reference/has_tag

general https://codex.www.ads-software.com/Conditional_Tags

it always makes sense to read the codex ??

Thanks for all the help.

The has_tag() seem to do the trick without me making to many changes.

Yes! Thank you so much for this thread. The has_tag() is exactly what I was looking for.

<?php if (has_tag(array('video',''))) { ?>
<!-- don't show the image if there is a video-->

<?php } else { ?>

<div class="featuredImage"> <?php if ( has_post_thumbnail()) the_post_thumbnail(array( 504,378 )); ?> </div>

<?php } ?>