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php - 如何在 PHP 中循环网格

问题描述

在此处输入图像描述

<?php foreach($posts as $post) : ?>
    <div class="col-md-4">
        <h3><?php echo $post['title']; ?></h3>
        <small class="post-date">Posted on: <?php echo $post['created_at']; ?> in <strong><?php echo $post['name']; ?></strong></small>
    </div>
<?php endforeach; ?>

我遇到的问题是每次循环都是相同的结果

如下图： 在此处输入图片描述

我的问题是否可以帮助我提供一个比我的更好的 PHP 循环，并且在任何给定的图像数量上都不会留下任何语法错误？

标签： phploopsforeachgrid

解决方案

我已经修改了您的代码，看起来很多，但那是因为我必须创建一个数组来模拟您收到的数据。

//create an array that contains the column sizes we want in order
<?php $gridLayoutConfig = array("col-md-12", "col-md-8", "col-md-4", "col-md-3", "col-md-3", "col-md-3"); ?>
//here I am simulating data since I dont have your data
<?php $posts = array(
array("title" => "Mean Streets", "name" => "Meaner Streets", "created_at" => "0000"), 
array("title" => "Mean Streets 2", "name" => "Meaner Streets 2" , "created_at" => "0000"), 
array("title" => "Mean Streets 3", "name" => "Meaner Streets 3", "created_at" => "0000"),
array("title" => "Mean Streets 4", "name" => "Meaner Streets 4", "created_at" => "0000"),
array("title" => "Mean Streets 5", "name" => "Meaner Streets 5", "created_at" => "0000"),
array("title" => "Mean Streets 6", "name" => "Meaner Streets 6", "created_at" => "0000")
);  ?>
<?php $i = 0; ?>
//create container row outside the foreach
<?php echo "<div class='row'>"; ?>
<?php foreach($posts as $post) : ?>
//set divs class to whatever count is currently (0 = "col-md-12", 1 = "col-md-8")
//divide count by how many entries in our gridLayoutConfig  by whatever $i that means when we reach the last array entry $i % count($gridLayoutConfig) roll back around to equal 0 starting the layout again.
<?php echo '<div class="'.$gridLayoutConfig[$i % count($gridLayoutConfig)].'">' ?>
        <h3><?php echo $post['title']; ?></h3>
        <small class="post-date">Posted on: <?php echo $post['created_at']; ?> in <strong> 
        <?php echo $post['name']; ?></strong></small>
    </div>
<?php $i++; ?>

<?php endforeach; ?>
<?php echo "</div>"; ?>

还添加了一个 PHPFiddle 以更好地演示打开链接按 F9 运行然后检查检查器，您将看到每个 div 都有正确的类，它不会在小提琴中正确显示，因为没有包含引导程序，但应该在您自己的页面中正常工作.

http://phpfiddle.org/main/code/aei9-tw86

当我们到达“Mean Streets 7”时，您会在 php fiddle 中看到 $gridLayoutConfig 再次从开头 ($gridLayoutConfig[0]) 开始，并将重复该模式。

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