I wonder if it is better to write:

    $lesser2000 = Mage::helper('wr_epo')->getFensterbankTill2000mm($quote);
    $higher2000 = Mage::helper('wr_epo')->getFensterbankHigherThen2000mm($quote);
    $lesser3000 = Mage::helper('wr_epo')->getFensterbankTill3000mm($quote);
    $higher3000 = Mage::helper('wr_epo')->getFensterbankHigherThen3000mm($quote);
    $sumFensterbank = Mage::helper('wr_epo')->getFensterbankTotal($quote);
    $totalCartWeight = Mage::helper('wr_epo')->getFensterbankTotalWeight($quote);


    $wrEpo = Mage::helper('wr_epo')

    $lesser2000 = $wrEpo->getFensterbankTill2000mm($quote);
    $higher2000 = $wrEpo->getFensterbankHigherThen2000mm($quote);
    $lesser3000 = $wrEpo->getFensterbankTill3000mm($quote);
    $higher3000 = $wrEpo->getFensterbankHigherThen3000mm($quote);
    $sumFensterbank = $wrEpo->getFensterbankTotal($quote);
    $totalCartWeight = $wrEpo->getFensterbankTotalWeight($quote);

Which is better for performance? Or does it make no difference?

  • Do you really want to benchmark this? ;) I really care about performance, but this is negligible.
    – sv3n
    Oct 22, 2018 at 17:19
  • @sv3n, you are thinking in a small scale. If there are thousands of users, then the impact is much higher.
    – Black
    Oct 23, 2018 at 7:13
  • I doubt it, but you seem to have found your answer.
    – sv3n
    Oct 23, 2018 at 9:03
  • Imagine a site like amazon, if this costs 0.0001 second more, then it already takes 10 seconds if there are 100.000 requests.
    – Black
    Oct 23, 2018 at 9:48
  • This would be the case if one request would call the helper 100.000 times ...
    – sv3n
    Oct 23, 2018 at 11:25

1 Answer 1


Not benchmarked, but I think is no big difference in performace. After first load Mage::helper() just returns data from registry.

public static function helper($name)
    $registryKey = '_helper/' . $name;
    if (!isset(self::$_registry[$registryKey])) {
        $helperClass = self::getConfig()->getHelperClassName($name);
        self::register($registryKey, new $helperClass);
    return self::registry($registryKey);

If I have to call Mage::helper() multiple times I use a variable for my helper.

When you use Mage::helper('wr_epo') it just uses !isset() ... benchmark here:

With $helper = Mage::helper('wr_epo') it takes some memory for the variable ...

Which is better for performance? Or does it make no difference?

IMHO it makes no difference, but in doubt i'd use first (w/o variable) ;)

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