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<?php | |
/* Simple sample USSD registration application | |
* USSD gateway that is being used is Africa's Talking USSD gateway | |
*/ | |
// Print the response as plain text so that the gateway can read it | |
header('Content-type: text/plain'); | |
/* local db configuration */ | |
$dsn = 'mysql:dbname=dbname;host=127.0.0.1;'; //database name | |
$user = 'your user'; // your mysql user | |
$password = 'your password'; // your mysql password | |
// Create a PDO instance that will allow you to access your database | |
try { | |
$dbh = new PDO($dsn, $user, $password); | |
} | |
catch(PDOException $e) { | |
//var_dump($e); | |
echo("PDO error occurred"); | |
} | |
catch(Exception $e) { | |
//var_dump($e); | |
echo("Error occurred"); | |
} | |
// Get the parameters provided by Africa's Talking USSD gateway | |
$phone = $_GET['phoneNumber']; | |
$session_id = $_GET['sessionId']; | |
$service_code = $_GET['serviceCode']; | |
$ussd_string= $_GET['text']; | |
//set default level to zero | |
$level = 0; | |
/* Split text input based on asteriks(*) | |
* Africa's talking appends asteriks for after every menu level or input | |
* One needs to split the response from Africa's Talking in order to determine | |
* the menu level and input for each level | |
* */ | |
$ussd_string_exploded = explode ("*",$ussd_string); | |
// Get menu level from ussd_string reply | |
$level = count($ussd_string_exploded); | |
if($level == 1 or $level == 0){ | |
display_menu(); // show the home/first menu | |
} | |
if ($level > 1) | |
{ | |
if ($ussd_string_exploded[0] == "1") | |
{ | |
// If user selected 1 send them to the registration menu | |
register($ussd_string_exploded,$phone, $dbh); | |
} | |
else if ($ussd_string_exploded[0] == "2"){ | |
//If user selected 2, send them to the about menu | |
about($ussd_string_exploded); | |
} | |
} | |
/* The ussd_proceed function appends CON to the USSD response your application gives. | |
* This informs Africa's Talking USSD gateway and consecuently Safaricom's | |
* USSD gateway that the USSD session is till in session or should still continue | |
* Use this when you want the application USSD session to continue | |
*/ | |
function ussd_proceed($ussd_text){ | |
echo "CON $ussd_text"; | |
} | |
/* This ussd_stop function appends END to the USSD response your application gives. | |
* This informs Africa's Talking USSD gateway and consecuently Safaricom's | |
* USSD gateway that the USSD session should end. | |
* Use this when you to want the application session to terminate/end the application | |
*/ | |
function ussd_stop($ussd_text){ | |
echo "END $ussd_text"; | |
} | |
//This is the home menu function | |
function display_menu() | |
{ | |
$ussd_text = "1. Register \n 2. About \n"; // add \n so that the menu has new lines | |
ussd_proceed($ussd_text); | |
} | |
// Function that hanldles About menu | |
function about($ussd_text) | |
{ | |
$ussd_text = "This is a sample registration application"; | |
ussd_stop($ussd_text); | |
} | |
// Function that handles Registration menu | |
function register($details,$phone, $dbh){ | |
if(count($details) == 2) | |
{ | |
$ussd_text = "Please enter your Full Name and Email, each seperated by commas:"; | |
ussd_proceed($ussd_text); // ask user to enter registration details | |
} | |
if(count($details)== 3) | |
{ | |
if (empty($details[1])){ | |
$ussd_text = "Sorry we do not accept blank values"; | |
ussd_proceed($ussd_text); | |
} else { | |
$input = explode(",",$details[1]);//store input values in an array | |
$full_name = $input[0];//store full name | |
$email = $input[1];//store email | |
$phone_number =$phone;//store phone number | |
// build sql statement | |
$sth = $dbh->prepare("INSERT INTO customer (full_name, email, phone) VALUES('$full_name','$email','$phone_number')"); | |
//execute insert query | |
$sth->execute(); | |
if($sth->errorCode() == 0) { | |
$ussd_text = $full_name." your registration was successful. Your email is ".$email." and phone number is ".$phone_number; | |
ussd_proceed($ussd_text); | |
} else { | |
$errors = $sth->errorInfo(); | |
} | |
} | |
} | |
} | |
# close the pdo connection | |
$dbh = null; | |
?> |
Thanks Abel, i don't understand where $level =0; is coming from. thanks
This code is sure running but when I test on AT sandbox, I enter 1 and send, it runs and return to home menu again, same for wen I enter 2. What could be wrong, it does not move to the next level?
How can level is detected if whole string of ussd is not sent at once. Suppose first a user enter *888# we know it is first level. Now he/she enters 6 for registration. ? Now how to make 8886 ?
Thank you for your generosity.
this code doesnt keep track of the level, it keeps resetting to 0, anytime the request is made
Is there anyone here who can help setup a USSD app to a telco gateway. We have established VPN connection, but somehow whenever someone dial our SC, they get a connection error. telco is telling us that our ussd app must connect to their gateway for them to see any incoming request. Any help would be greatly appreciated.
@zanmi1 I can help you with connection to telco.email me @jeanpaulbukombe@gmail.com
hmmm
@zanmi1 ,send an email to samlinncon@gmail.com , which Telko are you connecting to?
nice1!!!
dear how can i get
$phone = $_GET['phoneNumber'];
$ussd_string= $_GET['text'];
from xml soap
how can i code ussd for nigeria
{$ussd}*100#
- full name {name }
2 state of origin
@felixmadukaku . Do you have a connection to a telko for the ussd first?
Is that possible to open localhost/xampp server. How could i?
how can add back button option
I need someone that can help set up a Ussd App to integrate with AT's Api. Anyone offering service ?
@Afrihunter, drop a line at samlinncon@gmail.com I do offer such services.
great one.
Nice
Check this ussd package am creating. It might help yall. https://github.com/StilinskiCyril/ussd
Thanks of this Code Abel,
In my application using Live gateway, the $ussd_string_exploded and $details arrays are getting reset each time the user enters a value. for example, if the user selects 1. Register , the $ussd_string_exploded [0] =>1 , the user enters Full Name and Email the $ussd_string_exploded array resets by replacing the the 1 entered at the beginning with the Full Name and Email so $ussd_string_exploded [0] => Full Name and Email and this disturbs the level count. please help where am i wrong?