Wordpress - Get tag id by slug

Question

I am trying to get id\name of tag by it slug.

Thats my code:

$tag = get_term_by('slug', 'hedoms', 'post_tag');
$tag_id =  $tag->term_id;

<h1><?php echo $tag->name;?></h1>

I took it from here: https://codex.wordpress.org/Function_Reference/get_term_by

I have tag with the slug hedoms but the <h1> is empty, it not returns the value. I have tried this function (get_term_by) with category - and same result.

the 2nd field is the slug.

But if i do it with id and not slug, it works fine:

$tag_id = get_term_by('id', 97, 'post_tag');
echo $tag_id->name;

It look like the get_term_by recognize only 'id' as field.

What i miss here? it should be on loop or something ?

The file i trying to do it is archive-product.php of Woocommerce.

@RyanAW I need the slug because i working with ajax filter with tags, so after choosing something from dropdown list it change the url of the page with the slug on query string... and thats why i am using slug. anyway, also with "name" it not works for me. only with id. — Oshrib, Jun 22 '17 at 21:00
I am sorry for that , is it possible to use rest api ? like `http://yourwebsite/wp/wp-json/wp/v2/tags?slug=hedoms` — rheeantz, Jun 22 '17 at 21:09

score 9 · Answer 1 · answered Jun 22 '17 at 20:31

9

$tag = get_term_by('slug', ' hedoms','post_tag');

$tag_id =  $tag->term_id;

answered Jun 22 '17 at 20:31

mayank

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4
12

1

thanks but... Its the same code of mine. not working. – Oshrib Jun 22 '17 at 20:37
@Oshrib have you tried the same in same other file! – mayank Jun 22 '17 at 20:39
Yep. also on single.php – Oshrib Jun 22 '17 at 20:41
Try to `var_dump($tag) ;` – mayank Jun 22 '17 at 20:42
bool(false) for $tag, NULL for $tag->name; – Oshrib Jun 22 '17 at 20:46
But if i change the get_term_by to get it by id, and set the id of the same slug (hedoms) i get the value. $tag = get_term_by('id', 97, 'post_tag'); – Oshrib Jun 22 '17 at 20:48
It look like the get_term_by recognize only 'id' as field. – Oshrib Jun 22 '17 at 20:50
No as we can pass 'id', 'name', 'slug'. Check your slug again. – mayank Jun 22 '17 at 20:54
I have added image print-screen to the question, of the slug from the wp-admin tags section. – Oshrib Jun 22 '17 at 20:58
1

Have tried with wp_query. `$the_query = new WP_Query( array( 'post_type' => 'Adverts', 'tax_query' => array( array ( 'taxonomy' => 'post_tag', 'field' => 'slug', 'terms' => 'hedoms', ) ), ) );` – mayank Jun 22 '17 at 21:08
2

Than in loop you will get the data which you want. I.e. `while ( $the_query->have_posts() ) : $the_query->the_post(); /*var_dump() data*/ endwhile; wp_reset_postdata();` – mayank Jun 22 '17 at 21:10

score 3 · Answer 2 · answered Jun 22 '17 at 21:10

OK i have found the solution.

I set on the get_term_by the taxonomy 'post_tag' instead 'product_tag' as it woocommerce tags. Next time i will look carefully on the url of the wp-admin when i am looking on taxonomy page:

...wp-admin/edit-tags.php?taxonomy=product_tag&post_type=product

So the code should be like that:

           $tag = get_term_by('slug', $slug, 'product_tag');
           $tag_name = $tag->name;

           <h1><?php echo $tag_name; ?></h1>

Solved.

Wordpress - Get tag id by slug

2 Answers2