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PHPBuilder: Checking Data


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"Trust is everything in this day and age. You have to trust a lot of people, from the guy who gives you directions to your local plumber. After all, you're not always the authority. However, when developing applications for the web, you must assume the role of authority. Otherwise, the user will assume the role, which is a big gamble: total data integrity, data corruption, or diversion of data -- if the user is the authority, you don't know what the results will be." Trust is everything in this day and age. You have to trust a lot of people, from the guy who gives you directions to your local plumber. After all, you're not always the authority. However, when developing applications for the web, you must assume the role of authority. Otherwise, the user will assume the role, which is a big gamble: total data integrity, data corruption, or diversion of data -- if the user is the authority, you don't know what the results will be.

"We blame a lot of problems on 'bad code.' However, bad code isn't necessarily written with malicious intent; good code can go bad through simple misunderstandings and misuse of technologies. Three basic steps can be taken to avoid creating bad code. The first step is ensuring that you can trust your input. The next step is manipulating that input data carefully. The final step is providing the appropriate people with secure, reliable access to that data."

This article was originally published on Nov 12, 2000
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