This is the code I've figured out.
<?php
$username = $_POST['username'];
$email = $_POST['email'];
$json = '{"username":"'.$username.'",'.'"email":"'.$email.'"}';
$file = fopen('token_data.json','w+');
fwrite($file, $json);
fclose($file);
?>
But this is absolutely not the right way.
If your $_POST array has all of the data you need you can encode it as JSON and write to a file:
<?php
$json = json_encode($_POST);
$file = fopen('token_data.json','w+');
fwrite($file, $json);
fclose($file);
?>
If you want to append to the file you will need to read the file into an array first, add the newer parts of the array then encode it again before writing back to the file just like my friend @Rizier123 describes.
fopen(). Decode the JSON into an array with something like json_decode(). Add new data to the array, maybe array_push(). Give that a shot and come back when and if you need help with the code you have written.Okay, I found a more efficient way to do this.
// read the file if present
$handle = @fopen($filename, 'r+');
// create the file if needed
if ($handle === null)
{
$handle = fopen($filename, 'w+');
}
if ($handle)
{
// seek to the end
fseek($handle, 0, SEEK_END);
// are we at the end of is the file empty
if (ftell($handle) > 0)
{
// move back a byte
fseek($handle, -1, SEEK_END);
// add the trailing comma
fwrite($handle, ',', 1);
// add the new json string
fwrite($handle, json_encode($event) . ']');
}
else
{
// write the first event inside an array
fwrite($handle, json_encode(array($event)));
}
// close the handle on the file
fclose($handle);
}
Without decoding the whole JSON file into the arrays.
json_encode()to encode it to JSON 2) When you want to add stuff, take the file content, decode it and add your array to it, and then encode it before you save it again.json_encode$_POSTis an array you can go straight to JSON with it.