HTM Keyword Search Engine Over Text

keyword_search.php

<?php
/*
NOTES:
You need to buy a phone number from Nexmo and set up a webhook to call back to whereever this is hosted.
You also need to a Majestic API key
*/

//CHANGE THESE VALUES (these keys are not live - they are included for reference)
define("MAJESTIC_KEY", "E75625C6856B9607AFA4232FE77E3C9C");
define("NEXMO_KEY", "266bf1aa");
define("NEXMO_SECRET", "cadae103");
define("NEXMO_NUMBER", "44xxxxxxxxxx");
//use the GET response
$response = $_GET;

//make request to Majestic using the text's content
$majestic = json_decode(file_get_contents("https://api.majestic.com/api/json?app_api_key=" . MAJESTIC_KEY . "&cmd=SearchByKeyword&query=" . htmlspecialchars($response['text'])), true);

//make a new curl
$ch = curl_init();

//Check whether Majestic returned valid results
if(empty($majestic['DataTables']['Results']['Data'][0]['Item'])){
	$outp = "Sorry, those keywords aren't indexed by Majestic";
} else {
	$outp = "1. " . $majestic['DataTables']['Results']['Data'][0]['Item'] . "\n " . $majestic['DataTables']['Results']['Data'][0]['Title'] . "\n 2. " . $majestic['DataTables']['Results']['Data'][1]['Item'] . "\n " . $majestic['DataTables']['Results']['Data'][1]['Title'];
}

//Set up cURL reqeust to Nexmo
curl_setopt($ch, CURLOPT_URL, "https://rest.nexmo.com/sms/json");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "from=" . NEXMO_NUMBER . "&text=" . $outp . "&to=" . $response['msisdn'] . "&api_key=" . NEXMO_KEY . "&api_secret=" . NEXMO_SECRET);
curl_setopt($ch, CURLOPT_POST, 1);

//Set headers
$headers = array();
$headers[] = "Content-Type: application/x-www-form-urlencoded";
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

//execute cURL
$result = curl_exec($ch);
if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
//close connection
curl_close ($ch);

//print for debugging
print_r($result);

?>