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Posted by Jan Thomä on 08/30/07 13:11
Jerry Stuckle wrote:
> Jan Thomä wrote:
>> I always use the placeholder notation for doing SQL. Concatening SQL
>> strings from input values is almost certainly a safe path to SQL
>> injection.
>
> Not if you properly cleanse your input. Ensure numeric values are
> really numeric, and string values are processed through
> mysql_real_escape_string(), for instance.
Thanks for the input, and yes I agree, you should definitely cleanse your
input before feeding it to the database. My point was simply, that when you
give this kind of work to a framework and always use the ? notation, you
are safe from injection, even if you forget to check a single input
variable (which surely happens from time to time). Also you don't have to
do the conversions to different formats manually, so you save a bit of time
and effort.
Best regards,
Jan
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