Learn what is the difference between '==' and '===' operators in PHP, and when to use them correctly. This article explains how they work with different data types and values.

The is operator checks whether two variables refer to the same object in memory. a = [1, 2, 3] b = a c = [1, 2, 3]. print(a is b) # True: a and b are the same object print(a is c) # False: c is a ...

Python Operators Guide (v2.0) This repository provides an explanation of the differences between single and double asterisk operators ( * and ** ) in Python, focusing on their use for function ...

In mysql union operator used to combine the result of multiple select statements. when we apply the union operator then it selects only distinct values by default (no duplicate values are ...