Radio button or CheckboxThe difference in check box and period button is the user can't select more than one option in case of period buttons. In checkbox the user can give more than one option. For example in a newsletter script you can ask the visitor to select their interested areas. Here the user can give one or more than one option as the area of interest. So all options are to be stored or covered for the user. This way we can get more than one option for a choice.
In a radio ( or period ) button, we can select one option out of several choices given to the user. In a check box we can select more than one.
You can read more about basics and design of checkboxes in our html section
More on CheckBox & PHP
Checkbox: Using checkbox with PHP Scripts
Validation: Checking the user input of a checkbox and showing message
Checkbox Array: Handling a group of checkbox by array
Disable checkbox: Disable and enable checkbox by clicking button
Disable Text box : Disable a textbox by a checkbox
Limit Checkbox : Limiting the number of checkbox can be checked by user
Check All : Checking or unchecking a group of checkbox by button or at single point