magento2 get product collection

1<?php
2namespace Foungento\Theme\Block;
3class Theme extends \Magento\Framework\View\Element\Template
4{    
5    protected $_productCollectionFactory;
6        
7    public function __construct(
8        \Magento\Backend\Block\Template\Context $context,        
9        \Magento\Catalog\Model\ResourceModel\Product\CollectionFactory $productCollectionFactory,        
10        array $data = []
11    )
12    {    
13        $this->_productCollectionFactory = $productCollectionFactory;    
14        parent::__construct($context, $data);
15    }
16    
17    public function getProductCollection()
18    {
19        $collection = $this->_productCollectionFactory->create();
20        $collection->addAttributeToSelect('*');
21        $collection->setPageSize(10); // fetching only 10 products
22        return $collection;
23    }
24}
25?>
26
27/*Display product collection in phtml file
28Print out the product collection in phtml file with the below code:*/
29
30list.phtml
31$productCollection = $block->getProductCollection();
32foreach ($productCollection as $product) {
33    print_r($product->getData());     
34    echo "<br>";
35}

1//to overwrite limit but you need first to increase your memory limit
2
3 $collection = Mage::getModel('catalog/product')->getCollection()
4->addAttributeToSelect('*') // select all attributes
5->setPageSize(5000) // limit number of results returned
6->setCurPage(1); // set the offset (useful for pagination)
7
8// we iterate through the list of products to get attribute values
9foreach ($collection as $product) {
10  echo $product->getName(); //get name
11  echo (float) $product->getPrice(); //get price as cast to float
12  echo $product->getDescription(); //get description
13  echo $product->getShortDescription(); //get short description
14  echo $product->getTypeId(); //get product type
15  echo $product->getStatus(); //get product status
16
17  // getCategoryIds(); returns an array of category IDs associated with the product
18  foreach ($product->getCategoryIds() as $category_id) {
19      $category = Mage::getModel('catalog/category')->load($category_id);
20      echo $category->getName();
21      echo $category->getParentCategory()->getName(); // get parent of category
22  }
23  //gets the image url of the product
24  echo Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_MEDIA).
25      'catalog/product'.$product->getImage();
26  echo $product->getSpecialPrice();
27  echo $product->getProductUrl();  //gets the product url
28  echo '<br />';
29}
30