I have viewed other similar threads but could not find what I was looking for.
So here I am generating a random number for Otp and sending it to the end user. Now my problem is how do I compare the value input by the user and the randmoly generated number in PHP.
I am not using any database for this purpose so I require a database free solution.
Here is my HTML form.
<html>
<head>
<h1> Working Otp sample</h1>
</head>
<body>
<form method="POST" action="sendotp.php">
<input type="tel" name="phone"> <br>
<button type="submit" name="sub">Submit</button>
</form>
<form method="POST" action="sendotp.php">
<input type="tel" name="otp"> <br>
<button type="submit" name="sub2">Submit</button>
</form>
</body>
</html>
Here is the code which sends and verifies the OTP.
I think the if part in "else if" is not executed & also calling $myotp there(in else if) generates a new number every time. I can't seem to find a solution for it, please Help.
Thanks in advance for your time and input on this!
<?php
require __DIR__ . '/vendor/autoload.php';
use Twilio\Rest\Client;
if(isset ($_POST['sub']))
{
$phone = $_POST['phone'];
function generate()
{
$digits_needed=6;
$random_number=''; // set up a blank string
$count=0;
while ( $count < $digits_needed ) {
$random_digit = mt_rand(0, 9);
$random_number .= $random_digit;
$count++;
}
return $random_number;
}
$myotp = generate();
$account_sid = 'ACxxxxxxxxxxxxxxxxx';
$auth_token = 'xxxxxxxxxxxxxxxxxx';
$twilio_number = "+1234567890";
$client = new Client($account_sid, $auth_token);
$client->messages->create(
// Where to send a text message (your cell phone?)
$phone,
array(
'from' => $twilio_number,
'body' => "Your OTP is $myotp"
)
);
}
else if(isset ($_POST['sub2']))
{
$otp = $_POST['otp'];
echo "OTP is $otp";
if($otp == $myotp)
{
echo "OTP successfully verified!";
}
else
{
echo "Please enter valid OTP";
}
}