Question

Trying to put some slightly tricky form validation (in this instance for checkboxes) in relation to a sign up form for a tennis tournament

<?php 
if ( ( isset($_POST['ms'])&&isset($_POST['ws']) )
        || (isset($_POST['mc'])&&isset($_POST['ws']))
        || (isset($_POST['md'])&&isset($_POST['ws']))
        || (isset($_POST['ms'])&&isset($_POST['wc']))
        || (isset($_POST['ms'])&&isset($_POST['wd']))
        || (isset($_POST['mc'])&&isset($_POST['wc']))
        || (isset($_POST['mc'])&&isset($_POST['wd']))
        || (isset($_POST['md'])&&isset($_POST['wd']))
    ){
      $error_message .=('You can only play as one sex! <br />');
  }


if ( (isset($_POST['mc'])&&isset($_POST['md']) ) { //***
  $error_message .=('You cannot play in both the cadet tournament and mens doubles <br />');
  }

However, this causes a parse error for the line with the three asterisks.

unexpected ‘{‘

Presumably I have done something wrong, not in the use of curly brackets, but rather round brackets… but I cannot see where..

Answer 1

You’re missing a closing-bracket in your second if statement, use:

if ((isset($_POST['mc']) && isset($_POST['md']))) 

In future I’d suggest counting your opening and closing brackets in complex statements to make sure they’re balanced.