detect unchecked checkbox php

Question

Is there a way to check of a checkbox is unchecked with php? I know you can do a hidden field type in html but what about with just php when the form is submitted? I tried b

Answer 1

This is an old question, but for people looking for this....

Better approach to Matt's answer is to use $_SERVER['REQUEST_METHOD'] to check if form was submitted:

if ( $_SERVER['REQUEST_METHOD'] == 'POST' ) {
    //form was submitted...let's DO this.

    if (!isset($_POST['checkboxname'])) {
        // checkbox was not checked...do something
    } else {
        // checkbox was checked. Rock on!
    }
}