Question

我创建了一个简短的代码，其中计数器用于计算元素，但计数器只计数到“1”，为什么？

<?php $counter = "0";?>
<?php foreach($this->group('inhalt') as $i => $fields): ?>
    <?php $counter += 1 ;?>
    <div class="ce_countup autogrid-id_<?php echo $this->id; ?>_<?php echo $counter;?> autogrid-type_cte <?php if($counter ="1"){ echo "autogrid-first";} ?> <?php if($counter =$gridKlasse){ echo "autogrid-last";} ?> <?php echo $gridKlasse;?> autogrid_mode_auto autogrid block">
        <h3 id="ce_id_<?php echo $this->id; ?>_<?php echo $counter;?>"><?php echo $this->field('zahl#'.$i)->value(); ?></h3>
        <?php echo $this->field('bezeichnung#'.$i)->value(); ?>
    </div>   
<?php endforeach; ?>

Answer 1

你的问题在这里

<?php if($counter ="1"){ echo "autogrid-first";} ?>

在这里

<?php if($counter = $gridKlasse){ echo "autogrid-last";} ?>

您始终使用1重新初始化$counter变量，然后对整个表达式进行布尔值评估。您应该使用==或===来解决问题。此外，$gridKlasse应为数字。

试试这个：

<?php $counter = 0;?>
    <?php foreach($this->group('inhalt') as $i => $fields): ?>
    <?php $counter += 1 ;?>
    <div class="ce_countup autogrid-id_<?php echo $this->id; ?>_<?php echo $counter;?> autogrid-type_cte <?php if($counter === 1){ echo "autogrid-first";} ?> <?php if($counter === $gridKlasse){ echo "autogrid-last";} ?> <?php echo $gridKlasse;?> autogrid_mode_auto autogrid block">
        <h3 id="ce_id_<?php echo $this->id; ?>_<?php echo $counter;?>"><?php echo $this->field('zahl#'.$i)->value(); ?></h3>
        <?php echo $this->field('bezeichnung#'.$i)->value(); ?>
    </div>   
<?php endforeach; ?>

PHP计数器不起作用

1 个答案: