GET variable for text type always in url?

[mnymkr]

I am just curious here.

For radio and check boxes, if you do not enter a value their corresponding varialbe does not appear in the $_GET url

however with text boxes, it will appear at variable= why is this, if there is not value why not , not have it appear?

[mrmonster]

A radio\checkbox are activated when they are checked, nothing to pass before that, those elements are assigned value when they are activated.

A textbox always has a value, even if you don't type anything yourself.

Hehe, I hope that makes some sense:)

[mnymkr]

yeah that makes sense and i should have thought about so, no matter what a txt box varialbe will apear in the url even if it has no value?

[mrmonster]

Textbox always has a value, with "" being the default unless you enter something else.

[krt]

Yes, think of a textbox as a string (a string can have 0 length), and checkboxes/radio buttons almost like booleans, returning the value or just null.