$_POST['first_message'],
'second_message' => $_POST['second_message']
);
if (!empty($existingData)) {
$existingData[0] = $data;
file_put_contents($jsonFilePath, json_encode($existingData, JSON_PRETTY_PRINT));
echo "
Record has been updated successfully!
";
} else {
echo "
No records found in the JSON file.
";
}
}
$currentRecord = !empty($existingData) ? $existingData[0] : array();
?>