How to get product collection in Magento 2

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Overview of getting product collection in Magento 2
- Step 1: Declare in Mageplaza_HelloWorld Block
- Step 2: Display product collection in phtml file

Get Collection in Magento 2 means showing the items in your store when you run the command. With the code snippet in this topic, you can request the specific number of the product as you need. Let’s start calling the product in your Magento 2 store now!

Learn more: Get product collection by category ID in Magento 2

Overview of getting product collection in Magento 2

While there are different actions to get a certain product collection in Magento 2, they are loading, filtering (e.g. by attributes), and sorting. In this article, I will only introduce the fundamental steps to help you start working with product collection. Here are two initial steps:

Step 1: Declare in Mageplaza_HelloWorld Block
Step 2: Display product collection in phtml file

Step 1: Declare in `Mageplaza_HelloWorld` Block

You will use a block class of the module Mageplaza_HelloWorld, then possibly inject the object of \Magento\Catalog\Model\ResourceModel\Product\CollectionFactory in the constructor of the module’s block class.

app/code/Mageplaza/HelloWorld/Block/HelloWorld.php

<?php
namespace Mageplaza\HelloWorld\Block;
class HelloWorld extends \Magento\Framework\View\Element\Template
{    
    protected $_productCollectionFactory;
        
    public function __construct(
        \Magento\Backend\Block\Template\Context $context,        
        \Magento\Catalog\Model\ResourceModel\Product\CollectionFactory $productCollectionFactory,        
        array $data = []
    )
    {    
        $this->_productCollectionFactory = $productCollectionFactory;    
        parent::__construct($context, $data);
    }
    
    public function getProductCollection()
    {
        $collection = $this->_productCollectionFactory->create();
        $collection->addAttributeToSelect('*');
        $collection->setPageSize(3); // fetching only 3 products
        return $collection;
    }
}
?>

Note: You can request the number of the product collection, which is a limited or unlimited number. While implementing this function, you will need to extend the code based on the requirement.

Step 2: Display product collection in `phtml` file

Print out the product collection in phtml file with the below code:

$productCollection = $block->getProductCollection();
foreach ($productCollection as $product) {
    print_r($product->getData());     
    echo "<br>";
}

Now, you can get the data of each product in the requested collection.

Hope that you can perform this function easily on your project. If you have any queries about getting product collections by filtering or sorting or any questions in general, use the comment section below!

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Sam Nguyen

Sam is the CEO & co-founder of Mageplaza, a company established to support Magento merchants with different powerful tools and resources. Sam Nguyen is also the CEO & founder of Avada Commerce, an e-commerce solution provider headquartered in Singapore – aiming to support more than a million online businesses to grow and develop.

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