php - Foreach:为指定行数添加换行符(段落)的正确方法

Question

我在 mysql 数据库中有一堆随机句子，我可以毫无问题地将它们拉出来并使用下面的代码显示它们，但是，我对下一个过程感到困惑。

如何为每 X 行添加 nl 或封装在

标记中？所选行已限制为 14 行(任意)，我的目标是获取这 14 行并每隔 3 或 4 行(也是任意)添加一个换行符，以便它们看起来更流畅。

    <?php 
include $_SERVER['DOCUMENT_ROOT'] . '/dbConnect.php';
$q = $dbc->query("SELECT DISTINCT sentence FROM sentences ORDER BY rand() LIMIT 14");

    while($r = $q->fetch_array(MYSQLI_ASSOC)):
    foreach($r as $value) {
$value = str_replace('$keyword', '<b>replaced keyword</b>', $value);
echo $value." ";  
    }

    endwhile;

?>

上面的代码非常适合这样做:

示例输出:

This is a complete sentence that I'm outputting to the page.
This is a complete sentence that I'm outputting to the page.
This is a complete sentence that I'm outputting to the page.
This is a complete sentence that I'm outputting to the page.
This is a complete sentence that I'm outputting to the page.
This is a complete sentence that I'm outputting to the page.
This is a complete sentence that I'm outputting to the page.

但是，我希望它能做更多类似的事情，而不会创建低效的 3 个相同代码块(限制为 3、2 和 4 或类似代码)。

This is a complete sentence that I'm outputting to the page.
This is a complete sentence that I'm outputting to the page.
This is a complete sentence that I'm outputting to the page.

This is a complete sentence that I'm outputting to the page.
This is a complete sentence that I'm outputting to the page.

This is a complete sentence that I'm outputting to the page.
This is a complete sentence that I'm outputting to the page.
This is a complete sentence that I'm outputting to the page.
This is a complete sentence that I'm outputting to the page.

Answer 1

我想这就是您正在寻找的:

<?php 
include $_SERVER['DOCUMENT_ROOT'] . '/dbConnect.php';
$i=0; $j=0;
$seq=array(3, 2, 4);
$q = $dbc->query("SELECT DISTINCT sentence FROM sentences ORDER BY rand() LIMIT 14");

    while($r = $q->fetch_array(MYSQLI_ASSOC)):
    foreach($r as $value) {
         $value = str_replace('$keyword', '<b>replaced keyword</b>', $value);
         echo $value."<br>";
         if($i==$seq[$j])
         {
             echo "<br>";
             $j++;
             $i=0;
             if($j==count($seq)) $j=0;
          } else {
             $i++;
          }
    }
    endwhile;
?>

希望对你有帮助!