Question

$query = "SELECT * FROM seats WHERE SeatStatus = 1";
$display = @mysql_query($query);


if ($display){
$disable = "disable";
}


    <input name="ch1" type="checkbox" id="A1" value="" <?php echo $disable ?>/>;

how do i add “disable” inside the code…ive tried many time..but still didnt work..
Im new with php btw…Thanks..~

Answer 1

The main problem is that you are not checking if the query returned any results or an empty set. You are just checking whether the query is successful. mysql_query() would return false only when the query is wrong. In your case the query is correct, so $display = mysql_query(); will always evaluate to a non-false value.

To solve this, you should check how many rows mysql_query() returns using mysql_num_rows(). So let’s rewrite your code.

$query = "SELECT * FROM seats WHERE SeatStatus = 1";
$result = @mysql_query($query);
$display = (mysql_num_rows($result) == 1);

$disable = $display?'':'disabled="disabled"';

   <input name="ch1" type="checkbox" id="A1" value="" <?php echo $disable; ?>/>;

Hope that helps…

Peace…