A CakePHP Component for the Servage SMS API

Say it with an automated text message.

Tagged with Servage, CakePHP and Web Development
Posted on 4/6/07 by Paul Herron

Being a Servage customer, I'm using its SMS API, which offers two main features:

• Check if a text message can be sent to a specified number.
• Send a text message to a specified number.

Servage provides some example code for doing this, which I've rewritten as a CakePHP component.

app/controllers/components/sms.php

<?php
class SmsComponent extends Object {
   
    // The Servage URL for posting messages.
    var $send_url = 'http://smsgateway.servage.net/sms.php';
    // The Servage URL for requesting coverage information.
    var $coverage_url = 'http://smsgateway.servage.net/sms_coverage.php';
    // Customer ID.
    var $customer = '00000';
    // Customer key.
    var $key = '00000000';
 
/**
 * Sends an SMS message to the specified number.
 *
 * @param int $to The phone number to which the message should be sent.
 * @param mixed $message The message to be sent.
 * @param mixed $from The name or number of the sender.
 * @param int $concat The number of messages to join when sending.
 * @return boolean True if the message was successfully posted to Servage.
 */
    function send($to,$message,$from = null,$concat = 1) {
        // Add the parameters to the request URL.
        $request = $this->send_url.'?customer='.$this->customer.'&key='.$this->key.'&number='.urlencode($to).'&message='.urlencode($message).'&concat='.$concat;
        if (!is_null($from))
            $request .= '&from=' . $from;
        // Make the request.
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $request);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        $response = curl_exec($ch);
        curl_close($ch);
        // Get the status from the response string.
        $result = split(',',$response);           
        if ($result[0] == 'OK')
            return true;
    }
   
/**
 * Checks if coverage can be provided for the specified number.
 *
 * @param int $number The phone number with international dialling code, e.g. 447796544789.
 * @return boolean True if the specified number has coverage.
 */
    function hasCoverage($number) {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $this->coverage_url . '?number='.$number);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        $response = curl_exec($ch);
        curl_close($ch);       
        $result = split(',',$response);   
        if ($result[0] == 'OK')
            return true;
    }
}
?>

Once the component is declared in the $components array of the controller, it can be used like this:

// Check coverage.
$this->Sms->hasCoverage('447736044651');
// Send a message.
$this->Sms->send('447736044651', 'This is a test message.'));
// Send a message, this time specifying the sender and span.
$this->Sms->send('447736044651', 'This is a second test message.', 'graemegarden', 2));

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