SMS GATEWAY ISSUE in PHP - php

Question

I am integrating SMS gateway for the very first time. I want to send sms when someone pays to the website. I am using the following code:
<?php
$pay="1000";
$msg="Arivind";
echo $url="http://yourdomainname.com/api/swsend.asp?username=xxxxxx&password=xxxxxx&sender=SENDERID&sendto=91XXXXXXXXX&message=Dear'$msg' Thanks for making payment of Rs '$pay'";
$c=curl_init();
curl_setopt($c,CURLOPT_RETURNTRANSFER,1);
curl_setopt($c,CURLOPT_URL,$url);
$contents=curl_exec($c);
curl_close($c);
echo "SMS Successfully sent";
?>
Now if i am using variable in body of message, the message is not sent but if i use static message the message is getting delivered to the number.
The static message doesnt solve my purpose as i need the message to be sent to different person, the variable used ie $msg will have different name of people & fetched from database.
KINDLY SUGGEST.

Answer 1

Using variables between single quotes ' does not convert it into dynamic values. Also its better to RestApi in simple PHP function:
function CURLcall($number, $message_body){
$api_params = "swsend.asp?username=xxxxxx&password=xxxxxx&sender=SENDERID&sendto=91XXXXXXXXX&message=$message_body";
$smsGatewayUrl = "echo $url="http://yourdomainname.com/api/";
$smsgatewaydata = $smsGatewayUrl.$api_params;
$ch = curl_init();
curl_setopt($ch, CURLOPT_POST, false);
curl_setopt($ch, CURLOPT_URL, smsgatewaydata);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$output = curl_exec($ch);
curl_close($ch);
// Use file get contents when CURL is not installed on server.
if(!$output){
$output = file_get_contents($smsgatewaydata);
}
}
Call above function as:
$message_body = urlencode("Dear $msg Thanks for making payment of Rs $pay");
CURLcall('918954xxxxx',$message_body);
Please note: urlencode is useful to avoid errors in GET method as it convert space into encoded format http://php.net/manual/en/function.urlencode.php

Answer 2

You can also use http_build_query to convert your variables into a nicely formatted URL.
<?php
$fname = 'Matthew';
$lname = 'Douglas';
$amount = 1000;
$message = "Thanks for your payment of Rs {$amount}.";
$urlComponents = array(
'firstName' => $fname,
'lastName' => $lname,
'message' => $message
);
$url = 'http://yourdomainname.com/api/swsend.asp?';
echo $url . http_build_query($urlComponents);
?>