I'm trying to get my ussd application to work but I keep on running into
Undefined variable: response.
Any help would be appreciated.
I've tried using different types of loops foreach and while at line 57 and 75.
<?php
else if ($text == "2"){
// Business logic for first level response
$response = "CON Trade \n";
$response .= " 5.Withdraw \n";
$response .= " 6.Deposit \n";
} else if ($text == "2*5"){
// This is the second level response where the user selected 2 in the
first instance
$response = "CON Withdraw \n";
$response .=" 7.Tokens \n";
} else if($text == "2*5*7"){
require "dbconfig/config.php";
// This is a third level response where the user selected 1 in the
first instance
$response = "CON Tokens \n";
$tokens =$_POST["Buy"];
while($tokens == '$_POST["Buy"]'){
$balance =$_POST["balance"];
$Tokens = 20000;
$tokens = $Tokens - $balance;
}
//This is a terminal request. Note how we start the response with END
$response .= "END Your token balance is ".$tokens;
} else if ($text == "2*6") {
$response ="CON Deposit \n";
$response .= " 8.Quantity";
} else if($text == "2*6*8") {
require "dbconfig/config.php";
// This is a third level response where the user selected 2 in the
second instance
$response = "CON Quantity \n";
$quantity =$_POST["sell"];
while($quantity == '$_POST["sell"]'){
$number1 = 90;
$number2 = 1.840;
$number3 = 0.1;
$Conrate = $number2 / $number1;
$result = ($quantity * $Conrate) - ($number3 * ($quantity -
$conrate));
// This is a terminal request. Note how we start the response with END
$response .= "END You new token balance is ".$result;
}
}
// Echo the response back to the API
header('Content-type: text/plain');
echo $response;
?>
The expected response, all data entered at 7 & 8 should be passed to a database and a response should be generated by the ussd.
