Is there any way to call function defined in the app/code/Custom/Module/helpers/HelperClass.php inside the app/design/frontend/Custom/Theme/Magento_Theme/template/html/View.phtml in Magento 2?

I'm fairly new with magento 2, so I have no idea on how to achieve this.

  • does you get answer from my code or not? May 1, 2019 at 14:01

2 Answers 2


To call the helper function into phtml file, you can use this code.

$helper = $this->helper('Custom\Module\Helper\HelperClass');?>

You should not call helper directly in phtml.

You should provide helper instance dependency to the block that will renders the phtml and create a function in your block class that calls the helper and call that function in the phtml.

You should define it like below:

protected $helperData;

public function __construct(
    \{VendorName}\{ModuleName}\Helper\Data $helperData,
) {
    $this->helperData = $helperData;

public function doSomething()
    return $this->helperData->doSomething();

add below code in your phtml for calling helper:

  • But block is located in the /app/code right? What if I want to call this $block->doSomething() inside the phtml of my custom theme which is located in /app/design? May 1, 2019 at 13:05
  • Create an extension which should be use for your theme
    – Saphal Jha
    May 1, 2019 at 16:58

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