Get user role by ID WordPress

To check if a user has a specific role, you have to get a list of their roles and see if the role is listed there.

Example function:

function user_has_role($user_id, $role_name)
{
    $user_meta = get_userdata($user_id);
    $user_roles = $user_meta->roles;
    return in_array($role_name, $user_roles);
}

Example usage:

$user_is_subscriber = user_has_role(get_current_user_id(), 'subscriber');

hello try this optimal code

if (get_userdata($post->post_author)->roles[0] == 'your_specified_role'){
   echo 'role exist';
}else{
   echo 'role does not exist';
}

The info you need to know before you proceed:

• You can't get user role by ID directly.
• You can get all the roles a user is assigned to.

Let's get all the roles and check if the role you're interested in is there or now.

<?php

// Get the user object.
$user = get_userdata( $user_id );

// Get all the user roles as an array.
$user_roles = $user->roles;

// Check if the role you're interested in, is present in the array.
if ( in_array( 'subscriber', $user_roles, true ) ) {
    // Do something.
    echo 'YES, User is a subscriber';
}