Question

if i use the following code i got data in text file

{"title":"sankas","description":"sakars","code":"sanrs"}    
{"title":"test","description":"test","code":"test"}

but my code is working on

{"title":"sankas","description":"sakars","code":"sanrs"}

so i could not add more rows.where i want to change to get correct results.

        $info = array();
    $folder_name = $this->input->post('folder_name');
    $info['title'] = $this->input->post('title');
    $info['description'] = $this->input->post('description');
    $info['code'] = $this->input->post('code');
    $json = json_encode($info);
    $file = "./videos/overlay.txt";
    $fd = fopen($file, "a"); // a for append, append text to file

    fwrite($fd, $json);
    fclose($fd); 

Answer 1

use php’s file_put_content() more information here http://php.net/manual/en/function.file-put-contents.php

Update :
assuming that the data is correctly being passed. here is what you can do.

$info = array();
$folder_name = $this->input->post('folder_name');
$info['title'] = $this->input->post('title');
$info['description'] = $this->input->post('description');
$info['code'] = $this->input->post('code');
$json = json_encode($info);
$file = "./videos/overlay.txt";
//using the FILE_APPEND flag to append the content.
file_put_contents ($file, $json, FILE_APPEND);

Update 2:

if you want to access the value back from the text file. overlay.txt here is what you can do

$content = file_get_contents($file);

if you want to fetch title, code, and description separately. and if the string is in json then you need to convert it into array first by using.

//this will convert the json data back to array
$data = json_decode($json);

and to access individual value you can do it like this if you have one row

echo $data['title'];
echo $data['code'];
echo $data['description'];

if you have multiple rows then you can use php foreach loop

foreach($data as $key => $value)
{
    $key contains the key for example code, title and description
    $value contains the value for the correspnding key
}

hope this helps you.

Update 3:

do it like this

$jsonObjects = file_get_contents('./videos/overlay.txt');
$jsonData = json_decode($jsonObjects);
foreach ($jsonData as $key => $value) {
    echo $key . $value;
    //$key contains the key (code, title, descriotion) and $value contains its corresponding value
}