dongyuan2388 2014-05-08 13:25
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PHP根据可用的数组元素限制循环

I created the available seat with a for loop below:

<?php

$seats = 7;

for ($i=1; $i <= $seats; $i++) {

?>

<div class='col-xs-6'>
  <div class='well text-center' id='<?php echo $i ?>'>
    Seat No: <?php echo $i ?>
  </div>
</div>

<?php

}

?>

And I want to add a booked class if the $i variable matches with the $k variables which taken from the booked seat array elements below:

$booked_seat = array('1','4','5','6','7');

the result:

Array
(
    [0] => 1
    [1] => 4
    [2] => 5
    [3] => 6
    [4] => 7
)

So I did this:

<?php

$seats = 7;

for ($i=1; $i <= $seats; $i++) {

?>

<div class='col-xs-6'>
  <div class='well text-center <?php echo ($i == $booked_seat[$i-1]) ? 'booked' : '' ?>' id='<?php echo $i ?>'>
    Seat No: <?php echo $i ?>
  </div>
</div>

<?php

}

?>

And i get the offset Error because the $booked_seat is not much as the $seats loop, how to limit the loop so it will not offset?

Thank you before

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3条回答 默认 最新

  • dongtou2097 2014-05-08 13:30
    关注

    Try this:

    $seats = 7;
    
    for ($i=1; $i <= $seats; $i++) {
    
    
    ?>
    
    <div class='col-xs-6'>
      <div class='well text-center <?php echo (in_array($i, $booked_seat)) ? "booked" : "" ?>' id='<?php echo $i ?>'>
        Seat No: <?php echo $i ?>
      </div>
    </div>
    
    <?php
    
    }
    
    ?>
    

    warning: code is untested.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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