PHP Sending SMS

<?php
 
// NOTE - THE CODE BELOW IS PROVIDED FOR ILLUSTRATION ONLY 
 
//SOME CHANGES MAY BE NEEDED TO GET IT TO WORK IN YOUR PROGRAM
 
// plug in the values returned from
 
// http://api.upsidewireless.com/soap/Authentication.asmx/GetParameters
 
// please note that in order to use this and other examples and EnterpriseSMS 
 
//API your account must have permissions set to do so. 
 
$token = '----------------------------------------';
 
$signature = '--------------------------------------';
 
$api_call_data = array(
        'token' => $token,
        'signature' => $signature,
        'recipient' => '+16043434343', 
        'message' => 'Hello World',
        'encoding' => 'Seven' // Use 'Sixteen' if you are sending in Unicode
    );
 
$post_data = build_post_data($api_call_data );
 
// Please refer to
 
// http://api.upsidewireless.com/
 
// for other sending methods
 
$url = 'http://api.upsidewireless.com/soap/SMS.asmx/Send_Plain';
 
$xml = do_post_request($url, $post_data);
 
// be sure you look at the XML from above to see if there are any errors
 
 
// Everything below is just function definitions
 
function do_post_request($url, $data, $optional_headers = null) 
{ 
    $params = array('http' => array('method' => 'POST', 'content' => $data));
 
    if ($optional_headers !== null) { 
        $params['http']['header'] = $optional_headers; 
    }
 
    $ctx = stream_context_create($params); 
 
    $fp = @fopen($url, 'rb', false, $ctx); 
    if (!$fp) { 
        throw new Exception("Problem with $url, $php_errormsg"); 
    }
 
    $response = @stream_get_contents($fp); 
 
    if ($response === false) { 
        throw new Exception("Problem reading data from $url, $php_errormsg"); 
    }
    return $response; 
}
 
 
function build_post_data($data, $prefix=null, $sep="", $key="") {
 
    $ret = array();
 
    foreach((array)$data as $k => $v) {
 
        $k = urlencode($k);
 
        if(is_int($k) && $prefix != null) {
            $k = $prefix.$k;
        }
 
        if(!empty($key)) {
            $k = $key."[".$k."]";
        }
 
        if(is_array($v) || is_object($v)) {
            array_push($ret, build_post_data($v,"",$sep,$k));
        } else {
            array_push($ret,$k."=".urlencode($v));
        }
    }
 
    if(empty($sep)) {
        $sep = ini_get("arg_separator.output");
    }
 
    return implode($sep, $ret);
}
 
?>

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