[UPHPU] MySQL int lenght?

[Wade Preston Shearer]

The docs show that you can specify a length for a MySQL int field, but  
I don't see it used in any examples. What does length do? how is it  
used? what's the point? There is tinyint, smallint, int, etc, that are  
different sites. Is int [length] like how it works with varchar()?
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