SMS Tools Event Handler. So the idea to to create an event handler for SMS Tools, which will work in a similar way to a USSD session. User get's the menu with options. We SMS the options back to them. Then they issue a subsequent message to get the information they need back via SMS.

smstools_eventhandler.php

#!/usr/bin/php
<?php


# This function will be used to get the information from the inbound SMS
function decode($string)
{
    # Split the text into lines
    $lines = explode("\n", $string);

    if (!empty($lines))
    {
        # The actual message content would be the last entry
        $message = end($lines);

        # Return the message
        return $message;
    }

    # Default to a failure
    return false;
}


# This function will take the inbound text and dispatch it to a command
function menu($message=false)
{
    # Ensure that we have a message
    if ($message !== false)
    {
        # Should the message contain a space, it will be a command => value format
        if (strstr($message, " "))
        {
            # The Command will be the first word
            $explode = explode(' ', $message);
            $command = array_shift($explode);

            # The context the remaining word / words
            $context = implode(' ', $explode);

            # Log the data
            logger("OK: COMMAND: " . $command);
            logger("OK: CONTEXT: " . $context);

        }

        # Otherwise the command is the message
        else
        {
            $command = $message;
            logger("OK: COMMAND: " . $command);
        }

        # Switch through the message options
        switch($command)
        {
            # Just in case we recei
            case "":
                logger("ERROR: No command provided");
                break;

            default:
                logger("ERROR: Command " . $command . " not found in system");
                break;
        }
    }
}


# I would also like to make the Logger generic
function logger($message=false)
{
    if ($message)
        echo time() . " " . date('d M Y H:i', time()) . " | " . $message . PHP_EOL;
}


# We received more than just one arguments
if (count($argv) > 1)
{
    logger("=============================== START =================================");

    # We need to remove the first index as it's always irrelevant.
    array_shift($argv);

    # Attempt to write the last arguments the event handler received
    file_put_contents("/tmp/inbound_sms_arguments.txt", implode(', ', $argv));

    # We received an SMS
    if ($argv[0] == "RECEIVED")
    {
        // Logger
        logger("OK: Received Message");

        # Does the file exist?
        if (file_exists($argv[1]))
        {
            // Logger
            logger("OK: File exists, attempting to read it");

            # Attempt to read the SMS, and decode it
            $readFile = file_get_contents($argv[1]);

            # Cool we could read it
            if ($readFile !== false)
            {
                // Logger
                logger("OK: Attempting to decode the message");

                $decode = decode($readFile);

                # Should the decode be successful
                if ($decode !== false)
                {
                    // Logger
                    logger("OK: Message decoded, sending to menu for dispatch");

                    # send the data to the menu function to dispatch the action
                    menu(strtolower($decode));
                }

                # Couldn't decode the file
                else
                {
                    // Logger
                    logger("ERROR: We were not able to decode the message: " . $readFile);
                }
            }

            # PHP Couldn't get the files content
            else
            {
                // Logger
                logger("ERROR: Weird, PHP couldn't read the inbound SMS file's content: " . $argv[1]);
            }

            # Write the last SMS we received
            file_put_contents("/tmp/inbound_sms_content.txt", $readFile);
        }

        # Weird PHP could not pick the file up
        else
        {
            // Logger
            logger("ERROR: Weird, PHP couldn't read the inbound SMS file: " . $argv[1]);
        }
    }

    # We received something else
    else
    {
        // Logger
        logger("INFO: Not inbound message, ignoring: " . implode(', ', $argv));
    }

    logger("=============================== END ==================================\n");
}

# Exit with a good state
exit(0);

Hey thanks for the gist but i don't know where to put this. I don't know where to check my receive messages please help 😄