lib/MultiIniModifier.php
public function isModified()
    {
        if ($this->master instanceof IniModifierInterface) {
            return $this->master->isModified() || $this->overrider->isModified();
        }

        return $this->overrider->isModified();
    }
public function isModified()
    {
        if ($this->master instanceof IniModifierInterface) {
            return $this->master->isModified() || $this->overrider->isModified();
        }

        return $this->overrider->isModified();
    }
says if the ini content has been modified.

@return bool

@since 1.2