Pantheon\Terminus\Collections\OrganizationSiteMemberships::siteIsMember PHP Method

Determines whether a site is a member of this collection

public siteIsMember ( Site $site ) : boolean
$site	Site	Site to determine membership of
return	boolean

    public function siteIsMember($site)
    {
        $is_member = !is_null($this->get($site));
        return $is_member;
    }

OrganizationSiteMemberships