函数总是返回false [关闭]

Question

I am working on a project that users apply for events. The pertinent code I have now is as follows:

      <? if(in_array($u_id, $app)){ ?>
          <td>Unapply:</td>
          <td><a href="event_unapply.php?event_id=<?=$e_id; ?>">Unapply</a></td>
      <? } else{ ?>
           <td>Apply:</td>
           <td><a href="event_apply.php?event_id=<?=$e_id; ?>">Apply!</a></td>
      <? }?>

Now if a user is applied, the print_r of the array looks like:

Array ( [0] => Array ( [id] => 3 [Userid] => 1 ) )

$u_id matches the [Userid] in the event but it always goes to the else statement.

I tried doing $app['0'] but then every time the user is not applied for an event, it returns a PHP error.

Does anyone have an idea to make it so it would work?

Answer 1

Nvmd, had a tad of a brain fart but I got it working correctly by using:

      <? if($u_id == $app['0']['Userid']){ ?>
          <td>Unapply:</td>
          <td><a href="event_unapply.php?event_id=<?=$e_id; ?>">Unapply</a></td>
      <? } else{ ?>
           <td>Apply:</td>
           <td><a href="event_apply.php?event_id=<?=$e_id; ?>">Apply!</a></td>
      <? }?>