gistfile1.txt

<?php

$pattern = '/{{([a-zA-Z]{0,10})(.*?)}}/si';

$string = '{{product.name}} aaa {{Product.sku}} aa444a {{Product.price}}';


preg_match_all($pattern, $string, $matches);
$helper = new helper();
if(isset($matches[0]) && is_array($matches[0])){
    foreach ($matches[0] as $var){
        $name = $helper->getAttributeName($var);
        $object->getData($name);
        
    }
}

class helper{
    const MAPPING_DELIMITER = '.';

    function getAttributeName($string = null){

        if(!$string) return null;

        $string = str_replace(
            [
                '{{',
                '}}'
            ], '', $string
        );
        $pieces = explode(self::MAPPING_DELIMITER, $string);
        if(isset($pieces[1])){
            return $pieces[1];
        } else{
            return null;
        }
    }
}