如何在 php 中为 Bootstrap 轮播编写 foreach 循环


How do I write a foreach loop for a Bootstrap carousel in php?

我正在尝试为 PHP 中的引导轮播编写一个 foreach 循环,但我遇到的问题是,第一张幻灯片的 div 必须设置为"活动"而不是其余的,并且 li 的"data-slide-to"必须设置为正确的数字,使第一个"[0]"有一类活动,但其余的不是......

我知道如何获得foreach的第一个结果,但我不知道如何分别调用第二个及以后的结果,也不知道如何使其与"数据幻灯片"相匹配。

这是我下面的代码。
免责声明:PHP代码是特定于Wordpress的,但问题的答案不涉及特定于Wordpress的代码。

.PHP

$query_images_args = array(
    'post_type'      => 'attachment',
    'post_mime_type' => 'image',
    'post_status'    => 'inherit',
    'posts_per_page' => - 1,
);
$query_images = new WP_Query( $query_images_args );
$images = array();
foreach ( $query_images->posts as $image ) {
    $images[] = wp_get_attachment_url( $image->ID );
}
for($i = 0; $i < count($images); $i++) {
$imageURL = $images[$i];
// I would echo all the entries with: 
// echo $imageURL;
}

.HTML

<div id="myCarousel" class="carousel slide">
        <!-- Indicators -->
        <ol class="carousel-indicators">
//Here's the active "li", which would be set to $imageURL[0]
            <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
//Here are the rest of the "li"s , which idk how to set up?
            <li data-target="#myCarousel" data-slide-to="1"></li>
            <li data-target="#myCarousel" data-slide-to="2"></li>
        </ol>

        <!-- Wrapper for Slides -->
        <div class="carousel-inner">
            <div class="item active">
                <!-- Set the first background image using inline CSS below. -->
//Again, I know to set the background-image:url to  '<?php echo $imageURL[0] ?>'
                <div class="fill" style="background-image:url('img/01.png');"></div>
                <div class="carousel-caption">
                    <h2>Caption 1</h2>
                </div>
            </div>
            <div class="item">
                <!-- Set the second background image using inline CSS below. -->
//Not sure about here...
                <div class="fill" style="background-image:url('img/02.png');"></div>
                <div class="carousel-caption">
                    <h2>Caption 2</h2>
                </div>
            </div>
            <div class="item">
                <!-- Set the third background image using inline CSS below. -->
//This part needs to be covered by the 2nd imageURL and beyond...
                <div class="fill" style="background-image:url('img/03.png');"></div>
                <div class="carousel-caption">
                    <h2>Caption 3</h2>
                </div>
            </div>
        </div>

        <!-- Controls -->
        <a class="left carousel-control" href="#myCarousel" data-slide="prev">
            <span class="icon-prev"></span>
        </a>
        <a class="right carousel-control" href="#myCarousel" data-slide="next">
            <span class="icon-next"></span>
        </a>
    </div>

不确定我是否正确接近它,但我无法让它工作。

<?php 
**//for indicators**
foreach($yourArray as $key=>$result){
     <li data-target="#myCarousel" data-slide-to="<?php echo $key; ?>" class="<?php if($ke==0){echo "active";} ?>"></li>
}

为了您的图像

foreach($yourArray as $key=>$result){
     <div class="item <?php if($key==0){echo "active";} ?>">
                <div class="fill" style="background-image:url('img/01.png');"></div> // Here is Your Image Url 
                <div class="carousel-caption">
                    <h2>Caption 1</h2>
                </div>
            </div>
}

希望这会给你一个想法。

您可能很久以前就解决了这个问题,但这就是我为解决第一个设置为"活动"的图像所做的。

echo '<div class="item active">'.$images[0].'</div>';
unset($images[0]);
foreach ($images as $img){
   echo '<div class="item">'.$img.'</div>';
}