Question

I am trying to use the Transendit.com service with Codeigniter. Currently I am trying to build the notify page. I can receive the POST request (in JSON format) and write it to a file. The strange thing is that I cannot parse the JSON object to a PHP array so that I can extract relevant data from it. When I decode it before writing to the file the file is empty. If I don´t the JSON code is written to the file.

This is my controller code:

$result = $_POST['transloadit'];

$result = json_decode($result); // This produces empty content in file

$this->load->helper('file');

if ( ! write_file('./files/myfile.php', $result))
{
 echo 'Unable to write the file';
} else {
 echo 'File written!';
}

The JSON object that is sent to the page can be found here: http://pastie.org/3056727

Answer 1

You’re trying to write a stdclass object (the decoded json) directly to a file – that won’t work.

Don’t decode $result – use the original json string to write to the file. Also, .json is a valid file format – consider using it instead of .php (might make more sense).

$result = $_POST['transloadit'];
$this->load->helper('file');

// You can test for valid json like this:
$is_valid_json = json_decode($result) !== NULL;

if ( ! write_file('./files/myfile.json', $result)) {
    echo 'Unable to write the file';
}
else {
    echo 'File written!';
}