I'm currently scraping prices from three websites using xPath, but since it updates on every page load, it makes loading slow. What I would like to do is store that data and only update it weekly. So:

> 
> 1) Scrape prices from three different websites using xPath,
> 
> 
> 2) Store that data (and update it weekly with Cron)
> 
> 
> 

At the moment, I am successfully scraping the prices with xPath using the following:

```
<?php // a new dom object
$store_link = get_field('store_link');

$ch = curl_init($store_link);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$cl = curl_exec($ch);

$dom = new DOMDocument();
@$dom->loadHTML($cl);
$xpath = new DOMXpath($dom);

$price = $dom->getElementById("tr_base_main_price");
$store_price = trim(str_replace(str_split('$'), '', ($price->nodeValue)));
} ?>

```

I'm completely in the dark with making it work with cron though. I'm using ACF, so I know I would use update\_field(), but I'm not sure where to go from there. My current reasoning is:

> 
> 1) Have xPath and update\_field() function in page.php (function XYZ)
> 
> 
> 2) Schedule function XYZ in functions.php
> 
> 
> 

Is that the correct way to do it? Any guidance will be GREATLY appreciated!!

Thanks so much!