How to get top most parent category id.

Hello All,

Here is the code for find the top most parent category from the current category or which category you want.

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Copy and paste below code in function.php file in your wordpress theme directory.
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function get_top_parent_category($cat_ID)
{
$cat = get_category( $cat_ID );
$new_cat_id = $cat->category_parent;

if($new_cat_id != “0”)
{
return (get_top_parent_category($new_cat_id));
}
return $cat_ID;
}
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Copy and paste above code in function.php file in your wordpress theme directory.
***********************************************************************

then call this function where you want.

$cat_ID = get_query_var(‘cat’);

if(get_top_parent_category($cat_ID)==3) //3 is the top most parent category id //
{
//***************Your Code here*************//
}

Thankyou All

Roopesh Jain