Question

I want to store 2 variables in a value, but I not sure with the syntax.
The scenario: I want to store $boothAlias and $day2 into checkbox value to be pass to other page.

<input name='totalDay[]' type='checkbox' value='$boothAlias.$day2'/>

My code segment

while($rows = mysql_fetch_array($result2)){
  $boothAlias=$rows['boothAlias'];
  $totalDay=$rows['totalDay'];
  echo "<tr><td>$boothAlias</td>";
  for ($day2 = 1; $day2 <= $totalDay; ++$day2) {
    echo "<td><input name='totalDay[]' type='checkbox' value='$boothAlias.$day2'/></td>";
  }
  echo "</tr>";
}

Answer 1

I think you would be better off using hidden form fields to pass data like that to your processing script. The checkbox form object is really designed for returning checked/unchecked (true/false). Depending on the value of the checkbox you can process the code and variables accordingly.