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Comprehensible PHP Code - Page 3

by: PHP Builder Staff
October 3, 2001

Opening and closing tags
It is always recommended that PHP code should be enclosed within <?php and ?> tags. Though, <? and ?> or <% and %> can be used but they might in some cases conflict with ASP or XML tags.
Care should be taken that proper comments should be added in the code regarding all includes (include files). Their role and importance should be carefully explained. We should also ensure that the principle of modularity in programs is followed. Modularity helps when we are forced to make necessary changes in the code due to some additions or as per the recommendations of the tester or QA.
Moreover, in case of white box testing a proper coding standard is always helpful. For those who are not conversant with the various testing techniques, i would like to explain that White-box testing strategies include designing tests such that every line of source code is executed at least once, or requiring every function to be individually tested. Very few white-box tests can be done without modifying the program, changing values to force different execution paths, or to generate a full range of inputs to test a particular function. Thus as a part of the SDLC we can't afford to ignore the other aspects of SDLC as well, like, designing, testing, maintenance etc.
I would thus conclude by stating that coding is not limited to itself, but there are many other aspects that are directly or indirectly dependent on it. So proper care should be taken while documenting the programs. There should be a standard that should be followed.
-- Sujith Nair

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