Track FitnessDepot inventory by SKU

fitnessdepot_inventory_alert.php

<?php

$sku = 'PBSEXP50';
$url = 'https://www.fitnessdepot.ca/WebService/store-inventory.php?store_id=6&price=549.88&sku=' . $sku;
// List of nodes I don't want to check, some store inventory is not up to date
$ignoreNodes = [
	'Oakville',
	'Call or Email to [email protected]'
];
$foundNodes = [];
$inStock = false;

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 2);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
$response = curl_exec($ch);
curl_close($ch);

if ($response === false) {
	// report an error
	exit(1);
}

$doc = new DOMDocument();
@$doc->loadHTML($response); //suppress warnings due to invalid HTML

$trs = $doc->getElementsByTagName('tr');
foreach ($trs as $tr) {
	$tds = $tr->getElementsByTagName('td');

	if (!in_array(@$tds[0]->nodeValue, $ignoreNodes) && @$tds[1]->nodeValue == "In Stock") {
		$inStock = true;
		$foundNodes[] = $tds[0]->nodeValue;
	}
}

if ($inStock) {
	$message = "SKU: {$sku}\r\nFound inventory at the following locations: " . implode(', ', $foundNodes) . "\r\n";
	$ret = mail(getenv('PERSONAL_EMAIL'), 'FitnessDepot Inventory', $message);
}

exit;