Laravel Curl to send multiple SMS - laravel

Question

I am developing a small script and I am bit messed up.
I'm parsing csv file as list of phone Nos to receive bulk SMS notification.
The csv file record is in the form of 1 phone No column contains all phone Nos
the app is first allow the user to upload csv file then it shows them to the user in order to prepare a text message to be sent.
The app is working but no SMS received.
I wish if some help me with phone No array.
(code from comment 1)
if (count($data) > 0) {
if ($request->has('header')) {
$csv_header_fields = [];
foreach ($data[0] as $key => $value) {
$csv_header_fields[] = $key;
}
}
$csv_data = $data;
$csv_data_file = CsvData::create([
'csv_filename' => request->file('csv_file')->getClientOriginalName(),
'csv_header' => $request->has('header'),
'csv_data' => json_encode($data)
]);
} else {
return redirect()->back();
}
(code from comment 2)
$json = array();
$mobile_phone = $data;
$message = $notes ." \Hello";
$mobile_phone_array = str_split($mobile_phone);
$sms = array( 'number' => $mobile_phone, 'message' => $message, 'key' => '123' );
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_URL, '10.192.100.180/NoranAPI/default.aspx');
curl_setopt($ch, CURLOPT_HTTPHEADER, array( 'Content-Type: application/json'));
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($sms));
$result_sms = curl_exec($ch);