/**
* Test tracking data retrieval.
*
* @param $testNumbers array An array of tracking numbers to test.
*/
function testDataRetrieval($testNumbers)
{
echo ">>> Now testing retrieval of tracking data:\n\n";
$tracker = new ParcelTracker();
$numTests = count($testNumbers);
$failures = 0;
$successes = 0;
foreach ($testNumbers as $number) {
$parcel = $tracker->getDetails($number);
if (!$parcel) {
// Assert false
echo "\tFAIL {$number}\n";
$failures++;
} else {
// Assert true
echo "\tPASS {$number}\n";
$successes++;
// DEBUG
//print_r($parcel);
}
}
echo "\nRan {$numTests} tests, {$failures} failures and {$successes} successes.\n";
}
$lastmod = gmdate('D, d M Y H:i:s \\G\\M\\T', $modtime);
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && $_SERVER['HTTP_IF_MODIFIED_SINCE'] == $lastmod) {
// Cached by the browser
header('Last-Modified: ' . $lastmod, true, 304);
return;
}
// Use file-based cache
header('Last-Modified: ' . $lastmod, true, 200);
} else {
$rss = '';
}
}
}
if (empty($rss)) {
// Perform a new tracking lookup
$tracker = new ParcelTracker($config);
$parcel = $tracker->getDetails($trackingNumber, $carrier);
// DEBUG
//print_r($parcel);
//return;
$rss = $tracker->toRSS($parcel, $config['cacheInterval']);
if ($config['cacheInterval'] > 0) {
// Cache the results
file_put_contents($cacheFile, $rss);
// Output last-modified header to enable browser/device caching
$lastmod = gmdate('D, d M Y H:i:s \\G\\M\\T', filemtime($cacheFile));
header('Last-Modified: ' . $lastmod, true, 200);
}
}
// Output the results
header('Content-type: text/xml');