How do secure the input on this baby

[Monkuar]

I have a field called

 

"Profile" it's a varchar(30)

 

Default value is

 

"0,0,0,0,0,0,0,0,0,0"

 

Now, for my users on my forum, I want them to hide parts of there profile/etc, so Me and you are going to assume that each 0 could only be 0 or 1.

 

But 1 problem.

 

if  I use

<input type=checkbox name='profile[]' value=1>

 

Then I get a imploded array of profile right? But how would I go about checking it so people cannot submit anything other then 0 or 1, and It needs to be intvalued also (for security), I heard a function called in_array, could this be used?

[bspace]

assume $profile is an array

 

$profile = array_map("intval", $profile);
if ((min($profile) >= 0) && (max($profile) <= 1)) {.......}

 

might be one way