Laratrust\Traits\LaratrustUserTrait::ability PHP Method

    public function ability($roles, $permissions, $group = null, $options = [])
    {
        $options = is_array($group) ? $group : $options;
        $group = is_array($group) ? null : $group;
        // Convert string to array if that's what is passed in.
        if (!is_array($roles)) {
            $roles = explode(',', $roles);
        }
        if (!is_array($permissions)) {
            $permissions = explode(',', $permissions);
        }
        // Set up default values and validate options.
        if (!isset($options['validate_all'])) {
            $options['validate_all'] = false;
        } else {
            if ($options['validate_all'] !== true && $options['validate_all'] !== false) {
                throw new InvalidArgumentException();
            }
        }
        if (!isset($options['return_type'])) {
            $options['return_type'] = 'boolean';
        } else {
            if ($options['return_type'] != 'boolean' && $options['return_type'] != 'array' && $options['return_type'] != 'both') {
                throw new InvalidArgumentException();
            }
        }
        // Loop through roles and permissions and check each.
        $checkedRoles = [];
        $checkedPermissions = [];
        foreach ($roles as $role) {
            $checkedRoles[$role] = $this->hasRole($role, $group);
        }
        foreach ($permissions as $permission) {
            $checkedPermissions[$permission] = $this->can($permission, $group);
        }
        // If validate all and there is a false in either
        // Check that if validate all, then there should not be any false.
        // Check that if not validate all, there must be at least one true.
        if ($options['validate_all'] && !(in_array(false, $checkedRoles) || in_array(false, $checkedPermissions)) || !$options['validate_all'] && (in_array(true, $checkedRoles) || in_array(true, $checkedPermissions))) {
            $validateAll = true;
        } else {
            $validateAll = false;
        }
        // Return based on option
        if ($options['return_type'] == 'boolean') {
            return $validateAll;
        } elseif ($options['return_type'] == 'array') {
            return ['roles' => $checkedRoles, 'permissions' => $checkedPermissions];
        } else {
            return [$validateAll, ['roles' => $checkedRoles, 'permissions' => $checkedPermissions]];
        }
    }