How to get all the options of a custom attribute in magento 2

Today I will share with you that How you can get all the options of a custom attribute by the attribute code in Magento 2.

First of all, you need to create an instance of EavConfig. I have shared the code that I used in a controller file, but you can use it in Helper or block according to your need.

<?php
namespace Companyname\Modulename\Controller\Product;

use Magento\Framework\App\Action\Context;

class Control extends \Magento\Framework\App\Action\Action
{
    protected $eavConfig;
   
    public function __construct(
        Context $context,
        \Magento\Eav\Model\Config $eavConfig
    ) {
        $this->_eavConfig = $eavConfig;
        parent::__construct($context);
    }
}

after that, write the function to get the all the options of the attribute,

public function execute()
	{
		$attributeCode = "attribute_code";
		$attribute = $this->_eavConfig->getAttribute('catalog_product', $attributeCode);
		$options = $attribute->getSource()->getAllOptions();
		$arr = [];
		foreach ($options as $option) {
		    if ($option['value'] > 0) {
		        $arr[] = $option;
		    }
		}
  	}

$arr now contains all the options as you can see below. The “value” is the option id and “label” is the frontend label of the option.

Array
(
    [0] => Array
        (
            [value] => 280
            [label] => option1
        )

    [1] => Array
        (
            [value] => 281
            [label] => option2
        )

    [2] => Array
        (
            [value] => 282
            [label] => option3
        )

    [3] => Array
        (
            [value] => 283
            [label] => option4
        )
)

You can use this wherever you need to display options of a custom attribute. I have used this on Magento version 2.2.1 but this will work for other versions as well.

For any queries, you can comment below.