Send SMS in PHP Using SMSGatewayCenter API

The following code will help to send SMS in PHP Using SMSGatewayCenter API before to go we need account at SMSGatewayCenter then place your credential in following code.

#index.php

<?php

$curl = curl_init();
$apikey = 'somerandomkey'; //if you use apikey then userid and password is not required
$userId = 'YourUsername';
$password = 'YourPaswword';
$sendMethod = 'simpleMsg'; //(simpleMsg|groupMsg|excelMsg)
$messageType = 'text'; //(text|unicode|flash)
$senderId = 'SMSGAT';
$mobile = '9199999999999,9199999999998'; //comma separated
$msg = "This is my first message with SMSGatewayCenter";
$scheduleTime = ''; //mention time if you want to schedule else leave blank

curl_setopt_array($curl, array(
    CURLOPT_URL => "http://www.smsgateway.center/SMSApi/rest/send",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_POSTFIELDS => "userId=$userId&password=$password&senderId=$senderId&sendMethod=$sendMethod&msgType=$messageType&mobile=$mobile&msg=$msg&duplicateCheck=true&format=json",
    CURLOPT_HTTPHEADER => array(
        "apikey: $apikey",
        "cache-control: no-cache",
        "content-type: application/x-www-form-urlencoded"
    ),
));

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
    echo "cURL Error #:" . $err;
} else {
    echo $response;
}

Place your credentials and run it will work for you. if you don't have account you can create https://www.smsgateway.center/

SMS Gateway Center Pricing