Filter posts/pages by user_role array

I have made a code for to filter wich pages to show depending on your user_role. Everything was alright. But my customer created NEW roles with similars name/slug.

So now, if some 1 have the role for exemple : Group APTNB, he will be able to see pages with role APTNB_CA because in the slug 'aptnb' is LIKE 'aptnb_ca' in my comparaison.

I have try to explore the possibility to use 'IN' with this post : Meta_query compare operator explanation

My script juste exploded when I used it.

Here is my code.

global $current_user;

$user_roles = $current_user-roles;
$user_role_query = array();

for ($i=0; $i  sizeof($user_roles); $i++) { 
    $user_role_query[] = array(
        'key'='attribution_roles',
        'value' = $user_roles[$i],
        'compare'='LIKE'
    );
}

// WP_Query arguments
$args = array (
    'post_type'      = 'suivi_des_comites',
    'order'          = 'ASC',
    'orderby'        = 'title',
    'posts_per_page' = -1,
    'meta_query'     = array_merge(
        array( 'relation' = 'OR' ),    // this must be an array
        $user_role_query
    )
);

The key, I think would be to rework the array()'s to make it work.

Here some of my print_r();

print_r($user_role_query);

Array
(
    [0] = Array
        (
            [key] = attribution_roles
            [value] = aptnb
            [compare] = LIKE
        )

)

print_r($args);

Array
(
    [post_type] = suivi_des_comites
    [order] = ASC
    [orderby] = title
    [posts_per_page] = -1
    [meta_query] = Array
        (
            [relation] = OR
            [0] = Array
                (
                    [key] = attribution_roles
                    [value] = aptnb
                    [compare] = LIKE
                )

        )

)

In my DB, the page attribute "attribution_roles" return this.

a:2:{i:0;s:8:"aptnb_ca";i:1;s:13:"administrator";}

When I use the method LIKE my query looks like this.

SELECT wp_posts.* FROM wp_posts INNER JOIN wp_postmeta ON ( wp_posts.ID = wp_postmeta.post_id ) WHERE 1=1 AND (( wp_postmeta.meta_key = 'attribution_roles' AND CAST(wp_postmeta.meta_value AS CHAR) LIKE '%administrator%' )) AND wp_posts.post_type = 'suivi_des_comites' AND (wp_posts.post_status = 'publish' OR wp_posts.post_status = 'private') GROUP BY wp_posts.ID ORDER BY wp_posts.post_title ASC

When I use the method = my query looks like this.

SELECT wp_posts.* FROM wp_posts INNER JOIN wp_postmeta ON ( wp_posts.ID = wp_postmeta.post_id ) WHERE 1=1 AND ( ( wp_postmeta.meta_key = 'attribution_roles' AND CAST(wp_postmeta.meta_value AS CHAR) = 'administrator' ) ) AND wp_posts.post_type = 'suivi_des_comites' AND (wp_posts.post_status = 'publish' OR wp_posts.post_status = 'private') GROUP BY wp_posts.ID ORDER BY wp_posts.post_title ASC

My objective is to fix the issue that [value] => aptnb is the same as [value] => aptnb_ca

and my query would looks like : FIND all post with custom post_type suivi_des_comites where user_role == 'aptnb_ca' OR user_role == 'aptnb'

It needs to be the exact string and not a part of it.