Login script login

Hi All,

Having a grey brain moment here and need some advise on the logic of this, should be simple, login script.

I am checking validity of

customer number
customer email
customer password (md5 in mysql)

So i have my form with relevant fields

Now i am getting problems with either sql or how i am handling , and showing, and errors.....

I think what i am asking is this

If someone just hits the login button show error "All fields must be entered"

If customer number dose not excist show relevant error

If customer number ok but email not show error

If customer number ok but email ok but password is not show error

If all is ok set sessions, got this ok, and proceed.

Any help with with this is very much appreciated.

Kind Regards

Dave C
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