What is Difference between Mage::getSingleton() and Mage::getModel() in Magento

What is difference between getSingleton and getModel in magento. It's very important question for interview in Magento. Every Interviewer asked this question.



Mage::getSingleton()

Mage::getSingleton() is first check the object are created or not. If the object is created then return existing object. If the object is not created then it will create. So Mage::getSingleton() faster than Mage::getModel().

1. $getproduct1  =  Mage::getSingleton('catalog/product');

2. $getproduct2  =  Mage::getSingleton('catalog/product');


$getproduct1 and $getproduct2  both are have same memory and return only one object each time.



Mage::getModel()

Mage::getModel() is always create new object.

1. $getproduct1  =  Mage::getModel('catalog/product');

2. $getproduct2  =  Mage::getModel('catalog/product');


$getproduct1 and $getproduct2  both have different object and also have different memory .