Uncommented functions or methods increase costs
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Uncommented Classes increase costs
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Missing comments can increase costs in PHP
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HTML comments do not add to user-friendliness
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Database columns, functions, triggers and procedures should be commented
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Code should be stripped out of suspicious comments
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Method parameters should have their description tag
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Ensure that your main SQL-related code artifacts are documented
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Too much commented out code can be counter-productive
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Ensure the code contains enough block of comments
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