如何通过使用textlocal sms api在Codeigniter中发送OTP？

Question

我已经编写了代码，通过使用textlocalapi在codeigniter中发送OTP，并使用require函数在控制器中加载了类文件（textlocal.class.php），但是每当我输入手机号码时，它都不会向该号码发送任何otp。 >

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

require ('./textlocal.class.php');

class User extends CI_Controller {
    public function __construct() {
        parent::__construct();
        $this->load->model('User_Model');
        $this->load->helper('string');

    }  ?>

这是textlocal.class.php文件的文件夹结构  

在模型中编写的用于发送otp的代码

public function send_otp(){
        $data['otp'] = random_string('numeric',6);
        $data['otp_id'] = random_string('alnum',6);
        $this->db->insert('otp',$data);

        // Account details
    $apiKey = urlencode('xyz');// My API key

    // Message details
    $numbers = 911234567894;
    $sender = urlencode('ABCDEF');//This my six digit sender name
    $message = rawurlencode('This is your message');



    // Prepare data for POST request
    $data = array('apikey' => $apiKey, 'numbers' => $numbers, "sender" => $sender, "message" => $message);

    // Send the POST request with cURL
    $ch = curl_init('https://api.textlocal.in/send/');
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);
    curl_close($ch);

    // Process your response here
    return $response;


    }