php foreach循环每3个循环内爆一次
我需要做一个画廊。我有从01到09的图像。我需要把它们分开。第一个div必须有一个活动的类。我们需要每3张图像重复一次div。我需要的正是这个html:php foreach循环每3个循环内爆一次,php,Php,我需要做一个画廊。我有从01到09的图像。我需要把它们分开。第一个div必须有一个活动的类。我们需要每3张图像重复一次div。我需要的正是这个html: <div class="item active"> <div class="row"> <div class="col-sm-4"> <div class="c
<div class="item active">
<div class="row">
<div class="col-sm-4">
<div class="col-item">
<div class="photo">
<img src="01.jpg" class="img-responsive" alt="a" />
</div>
</div>
</div>
<div class="col-sm-4">
<div class="col-item">
<div class="photo">
<img src="02.jpg" class="img-responsive" alt="a" />
</div>
</div>
</div>
<div class="col-sm-4">
<div class="col-item">
<div class="photo">
<img src="03.jpg" class="img-responsive" alt="a" />
</div>
</div>
</div>
</div>
</div>
...
<div class="item">
<div class="row">
<div class="col-sm-4">
<div class="col-item">
<div class="photo">
<img src="07.jpg" class="img-responsive" alt="a" />
</div>
</div>
</div>
<div class="col-sm-4">
<div class="col-item">
<div class="photo">
<img src="08.jpg" class="img-responsive" alt="a" />
</div>
</div>
</div>
<div class="col-sm-4">
<div class="col-item">
<div class="photo">
<img src="09.jpg" class="img-responsive" alt="a" />
</div>
</div>
</div>
</div>
</div>
...
但是我的代码不起作用。我不知道如何完成这个。。。
以下是我的PHP代码:
<div id="carousel-example-generic" class="carousel slide hidden-xs" data-ride="carousel">
<!-- Wrapper for slides -->
<div class="carousel-inner">
<?php
$countedimage = 0;
$counteddiv = 0;
$count = count($images_bottom);
for ($x = 0; $x <= $count; $x++) {
$countedimage++;
$counteddiv++;
if($countedimage == '4') {
$countedimage = 0;
?>
<div class="item<?php if($counteddiv != '1') { ?> active<?php } ?>">
<div class="row">
<div class="col-sm-4">
<div class="col-item">
<div class="photo">
<img src="<?php echo $images_bottom[$x]['popup']; ?>" class="img-responsive" alt="a" />
</div>
</div>
</div>
</div>
</div>
<?php } ?>
<?php } ?>
</div>
</div>
因此,您基本上希望为每个项目打印此部分:
<div class="col-sm-4">
<div class="col-item">
<div class="photo">
<img src="<?php echo $src ?>" class="img-responsive" alt="a"/>
</div>
</div>
</div>
例如:
for ($x = 1; $x < 50; $x++) {
if ($x % 5 == 0) echo $x . '<br>';
}
// results:
// 5
// 10
// 15
// 20
// 25
// 30
// 35
// 40
// 45
($x=1;$x<50;$x++)的{
如果($x%5==0)回显$x'
';
}
//结果:
// 5
// 10
// 15
// 20
// 25
// 30
// 35
// 40
// 45
在您的情况下,类似这样的方法会起作用:
<?php for ($x = 0; $x < count($images_bottom); $x++) {
$src = $images_bottom[$x]['popup'];
$item_active = $x==0 ? 'item active' : 'item'; // only use 'item active' first one
if ($x % 3 == 0) { // only display every 3rd time?>
<div class="<?php echo $item_active ?>">
<div class="row">
<?php } ?>
<div class="col-sm-4">
<div class="col-item">
<div class="photo">
<img src="<?php echo $src ?>" class="img-responsive" alt="a"/>
</div>
</div>
</div>
<?php if ($x % 3 == 2 || $x == count($images_bottom)-1){ // only display after every 3rd time (after items 0, 1, 2) or on last one ?>
</div>
</div><?php } ?>
<?php } ?>
首先,让我们从将图像分组为三的倍数开始
// An arbitrary list of image file names (used for clarity).
$images = ['image-1.jpg', 'image-2.jpg', 'image-3.jpg', 'image-4.jpg', 'image-5.jpg', 'image-6.jpg', 'image-7.jpg', 'image-8.jpg', 'image-9.jpg'];
// Separate images into groups of three.
$images = array_chunk($images, 3);
接下来我们需要看看输出。以HTML为例:
<div id="carousel-example-generic" class="carousel slide hidden-xs" data-ride="carousel">
<div class="carousel-inner">
<?php // Loop over each group of three images ?>
<?php foreach ($images as $g => $group): ?>
<div class="item <?= ($g == 0) ? 'active' : '' ?>">
<div class="row">
<?php // Loop over each image in group ?>
<?php foreach ($group as $i => $image): ?>
<div class="col-sm-4">
<div class="col-item">
<div class="photo">
<img src="<?= $image ?>" class="img-responsive" alt="a" />
</div>
</div>
</div>
<?php endforeach ?>
</div>
</div>
</div>
<?php endforeach ?>
</div>
</div>
是的,将它们组合在一起,使代码更简单。。。!
// An arbitrary list of image file names (used for clarity).
$images = ['image-1.jpg', 'image-2.jpg', 'image-3.jpg', 'image-4.jpg', 'image-5.jpg', 'image-6.jpg', 'image-7.jpg', 'image-8.jpg', 'image-9.jpg'];
// Separate images into groups of three.
$images = array_chunk($images, 3);
<div id="carousel-example-generic" class="carousel slide hidden-xs" data-ride="carousel">
<div class="carousel-inner">
<?php // Loop over each group of three images ?>
<?php foreach ($images as $g => $group): ?>
<div class="item <?= ($g == 0) ? 'active' : '' ?>">
<div class="row">
<?php // Loop over each image in group ?>
<?php foreach ($group as $i => $image): ?>
<div class="col-sm-4">
<div class="col-item">
<div class="photo">
<img src="<?= $image ?>" class="img-responsive" alt="a" />
</div>
</div>
</div>
<?php endforeach ?>
</div>
</div>
</div>
<?php endforeach ?>
</div>
</div>