How to create a file based on Database Values?

I want to create a .INI file based on the values I get from database. This are the values in my database for :

Now in the field parameter filed is the value i want to write in file each in new line.

I fetch the values like this:

$this->data['params'] = $this->parameter_m->get();

So I get all the values from the table.

I want to write values in file like this:

[INIDetails]
SipUserName=
Password=
Domain=
Proxy=
Port=
SipAuthName=
DisplayName=
ServerMode=
UCServer=
UCUserName=
UCPassword=

[DialPlan]
DP_Exception=
DP_Rule1=
DP_Rule2=

[Advanced]
OperationMode=
MutePkey=
Codec=
PTime=
AudioMode=
SoftwareAEC=
EchoTailLength=
PlaybackBuffer=
CaptureBuffer=
JBPrefetchDelay=
JBMaxDelay=
SipToS=
RTPToS=
LogLevel=

I have WRITE Function that writes into file

function write($file = NULL, $file_content = array(), $sections = TRUE) {
    $this->file_content = (!empty($file_content)) ? $file_content : $this->file_content;
    $this->file = ($file) ? $file : $this->file;
    $this->sections = $sections;
    $content = NULL;

    if ($this->sections) {
        foreach ($this->file_content as $section => $file_content) {
            $content .= '[' . $section . ']' . PHP_EOL;
            foreach ($file_content as $key => $val) {
                if (is_array($val)) {
                    foreach ($val as $v) {
                        $content .= $key . '[]=' . (is_numeric($v) ? $v : $v ) . PHP_EOL;
                    }
                } elseif (empty($val)) {
                    $content .= $key . '=' . PHP_EOL;
                } else {
                    $content .= $key . '=' . (is_numeric($val) ? $val : $val ) . PHP_EOL;
                }
            }
            $content .= PHP_EOL;
        }
    } else {
        foreach ($this->file_content as $key => $val) {
            if (is_array($val)) {
                foreach ($val as $v) {
                    $content .= $key . '[] = ' . (is_numeric($v) ? $v : '"' . $v . '"') . PHP_EOL;
                }
            } elseif (empty($val)) {
                $content .= $key . ' = ' . PHP_EOL;
            } else {
                $content .= $key . ' = ' . (is_numeric($val) ? $val : '"' . $val . '"') . PHP_EOL;
            }
        }
    }

    return (($handle = fopen($this->file, 'w+')) && fwrite($handle, trim($content)) && fclose($handle)) ? TRUE : FALSE;
}

And i use that function like this :

$path = "./uploads/"; 
        $filename = "default.ini";
        $this->load->helper('file');
        $file = $path.$filename;
        $this->load->library('ini');
        $ini = new INI($file);
        $ini->write($file, $this->data['params']);

So i how to write the array of values i get from database into file ?

As you can see there is a filed called Parameter_Type i want to set it as section in INI file.