php checkboxes - defalut check

[Anon]

I am trying to put a checkbox on a php page but i want one checkbox to be defaulted on

<input type="checkbox" name="whoisradio" value="checkbox">

I want to have the checkbox checked, what tag do i use?

[btubalinal]

not a php question but:

<input type="checkbox" name="whoisradio" value="checkbox" checked>