// URL for this request.
$URL = 'https://www.ipqualityscore.com/webhooks/ExampleIntegration/json/phone_check';

// Configuration items for this request. NOTE: $secret will be user specific not application specific.
$key = 'example.com';
$secret = 'YOUR_API_KEY_HERE';

// The phone number we want to check.
$phone = '18007132618';

// Prepare POST fields.
$fields = array(
	'secret' => $secret,
	'key' => $key,
	'phone' => phone
);
	
// Create CURL.
$curl = curl_init();
	
// Configure CURL
curl_setopt($curl, CURLOPT_URL, $URL);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curl, CURLOPT_POST, 1);

// Set POST Parameters
curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($fields));

// Fetch URL
$result = curl_exec($curl);

// GET response code.
$response_code = curl_getinfo($curl, CURLINFO_HTTP_CODE);

// Close CURL
curl_close($curl);
	
// Handle result.
if((int) $response_code === 200){
	// JSON Decode
	$output = json_decode($result, true);
	
	// Was our request successful?
	if($output['success'] === true){
	
		// Print out if this is a valid phone number or not.
		if($output['valid'] === true){
			echo "The phone number ".$phone." is a valid number.";
		} else {
			echo "The phone number ".$phone." is not a valid phone number.";
		}
	
	} else {
		echo $output['message'];
	}
} else {
	echo "There appears to be an unforeseen error. Please contact IPQualityScore support if this persists.";
}