Don't execute foreach loop if array is empty

Question

I have the following code, if there are no orders older then $days_ago, I want that the foreach loop won't be executed. I don't know how to do this.

$orders = Mage::getModel('sales/order')->getCollection()
     ->addAttributeToSelect('*')
     ->addAttributeToFilter('created_at', array('lt' => $days_ago));

     foreach ($orders as $order):
        if(!$this->_shouldBeAnonymised($order)):
            continue;
     endif;

        $this->_anonymiseSale($order);
     endforeach;

Hope someone can help me!

Answer 1

except getSize() you can use count as well,

like below

$orders = Mage::getModel('sales/order')->getCollection()
     ->addAttributeToSelect('*')
     ->addAttributeToFilter('created_at', array('lt' => $days_ago));

if($orders->count() > 0):
    foreach ($orders as $order):
        if(!$this->_shouldBeAnonymised($order)):
            continue;
        endif;

        $this->_anonymiseSale($order);
    endforeach;
endif;

Answer 2

Try this:

$orders = Mage::getModel('sales/order')->getCollection()
    ->addAttributeToSelect('*')
    ->addAttributeToFilter('created_at', array('lt' => $days_ago));
    if ($orders->getSize()) {
        foreach ($orders as $order):
            if(!$this->_shouldBeAnonymised($order)):
                continue;
            endif;

            $this->_anonymiseSale($order);
        endforeach;
    }