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steverobbins/dlp-affiliate-address-fraud-tests.php

Last active April 18, 2016 20:33
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dlp-affiliate-address-fraud-tests.php
<?php
define('THRESHOLD', 0.1);
// [address 1, address 2, should trigger fraud?]
$tests = [
// Addresses are exactly the same
[
[
'street' => '16555 Von Karman Ave',
'city' => 'Irvine',
'region' => 'CA',
'postcode' => '92606',
'country' => 'US',
],
[
'street' => '16555 Von Karman Ave',
'city' => 'Irvine',
'region' => 'CA',
'postcode' => '92606',
'country' => 'US',
],
true
],
// Addresses the same except for city/state
[
[
'street' => '16555 Von Karman Ave',
'city' => 'Irvine',
'region' => 'CA',
'postcode' => '92606',
'country' => 'US',
],
[
'street' => '16555 Von Karman Ave',
'city' => 'Irvine',
'region' => 'NY',
'postcode' => '88888',
'country' => 'US',
],
false
],
// One door down in street number
[
[
'street' => '16555 Von Karman Ave',
'city' => 'Irvine',
'region' => 'CA',
'postcode' => '92606',
'country' => 'US',
],
[
'street' => '16556 Von Karman Ave',
'city' => 'Irvine',
'region' => 'CA',
'postcode' => '92606',
'country' => 'US',
],
true
],
// Same city, different streets
[
[
'street' => '16555 Von Karman Ave',
'city' => 'Irvine',
'region' => 'CA',
'postcode' => '92606',
'country' => 'US',
],
[
'street' => '71 Technology Dr',
'city' => 'Irvine',
'region' => 'CA',
'postcode' => '92618',
'country' => 'US',
],
false
],
// Different street/city
[
[
'street' => '16555 Von Karman Ave',
'city' => 'Irvine',
'region' => 'CA',
'postcode' => '92606',
'country' => 'US',
],
[
'street' => '2595 E Imperial Hwy',
'city' => 'Brea',
'region' => 'CA',
'postcode' => '92821',
'country' => 'US',
],
false
],
// Saurabh's example
[
[
'street' => '294 Acme',
'city' => 'Oakland',
'region' => 'CA',
'postcode' => '94615',
'country' => 'US',
],
[
'street' => '29 Clarewood Lane',
'city' => 'Oakland',
'region' => 'CA',
'postcode' => '94615',
'country' => 'US',
],
false
],
];
function isFraud($address1, $address2)
{
$a1 = strtolower(implode(' ', [
$address1['street'],
$address1['city'],
$address1['region'],
$address1['postcode'],
$address1['country'],
]));
$a2 = strtolower(implode(' ', [
$address2['street'],
$address2['city'],
$address2['region'],
$address2['postcode'],
$address2['country'],
]));
$lev = levenshtein($a1, $a2);
//var_dump($lev / strlen($a1));
return [$lev / strlen($a1), $lev / strlen($a1) <= THRESHOLD];
}
?><html>
<head>
<title>Affiliate Address Fraud Tests</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap-theme.min.css" integrity="sha384-fLW2N01lMqjakBkx3l/M9EahuwpSfeNvV63J5ezn3uZzapT0u7EYsXMjQV+0En5r" crossorigin="anonymous">
</head>
<body>
<div class="container">
<div class="page-header">
<h1>Affiliate Address Fraud Tests</h1>
<h4>Threshold: <?php echo THRESHOLD ?></h4>
</div>
<table class="table">
<thead>
<tr>
<th>Test #</th>
<th>Customer's Address</th>
<th>Affiliate's Address</th>
<th>Sameness</th>
<th>Expected</th>
<th>Received</th>
<th>Status</th>
</tr>
</thead>
<tbody>
<?php foreach ($tests as $i => $test): ?>
<tr>
<td><?php echo $i + 1 ?></td>
<td>
<?php echo $test[0]['street'] ?><br />
<?php echo $test[0]['city'] ?>, <?php echo $test[0]['region'] ?> <?php echo $test[0]['postcode'] ?> <?php echo $test[0]['country'] ?>
</td>
<td>
<?php echo $test[1]['street'] ?><br />
<?php echo $test[1]['city'] ?>, <?php echo $test[1]['region'] ?> <?php echo $test[1]['postcode'] ?> <?php echo $test[1]['country'] ?>
</td>
<?php list($num, $result) = $result = isFraud($test[0], $test[1]) ?>
<td><?php echo round((1 - $num) * 100, 2) ?>%</td>
<td><?php echo $test[2] ? 'Fraudulent' : 'Valid' ?></td>
<td><?php echo $result ? 'Fraudulent' : 'Valid' ?></td>
<td>
<?php if ($result === $test[2]): ?>
<span class="label label-success">Pass</span>
<?php else: ?>
<span class="label label-danger">Fail</span>
<?php endif ?>
</td>
</tr>
<?php endforeach ?>
</tbody>
</table>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS" crossorigin="anonymous"></script>
</body>
</html>
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