Whether its C programming language or C++ programming language or PHP, we should have a coding standard in place before starting with the code development. Coding standard is a predefined standard which should be followed during the code development which will improve the quality of the code. The coding standards varies from organization to organization. Each organization define their own coding standard and follow them to achieve the desired code quality. Here, we will define a coding standard for writing functions. Coding Standards for Writing Functions A function name should be preceded by fn The first character in the function...