I have the following problem that seems to be basic: I have a HTML, to some checkbox, this:
<? php echo $ form> checkBox ($ certificate, 'a', array ('id' => 'a')); ?>
When sending the POST, if the checkbox is not with the check, send 0, and if checkbox sends 1, the same HTML I have this one:
<? php echo $ form> checkBox ($ certificate, 'head', array ('id' => 'head')); ?>
With this last time, if the checkbox is not check sent 0, but when to check, send nothing. So far I do not understand this behavior, can someone help me?