Question

任何人都可以帮我限制每个div的数据显示吗？示例我有10条记录，我希望每个div显示3条记录。

输出样本：

姓名|年龄
A | 11
B | 13
C | 11

姓名年龄
D | 10个
C | 13个
E | 11个

姓名年龄
F | 10个
G | 13个
H | 11个

姓名年龄
J | 9

代码：

foreach ( $datas as $data ) {
 echo "<div>";
 echo "Name | Age";
 echo "<div>".$data->name."|". $data->age;
 echo "</div>"
}

提前致谢。

Answer 1

这应该适合你：

// this is to have the numeric keys that I will use later on
$datas = array_values($datas);
echo '<div>';
foreach ( $datas as $key => $data ) {
    if ($key % 3 == 0 && $key > 0) {
        echo '</div><div>';
    }
    echo 'Name | Age';
    echo '<div>'.$data->name.'|'. $data->age .'</div>';

}
echo '</div>';

这里有一个简单数组的示例，用于说明代码的作用：

$datas = array(0.00, 0.2459, 0.688, 0.5, 10, 77, 36);
// This is used to remove the 'Chars' keys you added to the array following your comment
$datas = array_values($datas);
echo '<div>';
for ( $i = 0; $i < count($datas); $i++ ) {
    if ($i % 3 == 0 && $i > 0) {
        echo "</div><div>"; 
    }

    echo "Name | Age = ";
    echo $datas[$i] . ' * ';

}
echo '</div>';

将输出（我为了更好的可见性添加了断裂线）：

<div>Name | Age = 0 * Name | Age = 0.2459 * Name | Age = 0.688 * </div>
<div>Name | Age = 0.5 * Name | Age = 10 * Name | Age = 77 * </div>
<div>Name | Age = 36 * </div>

Answer 2

您可以使用模运算符来检查迭代是否是3的倍数

即使您的密钥不是数字，此示例也应该有效：

$i = 0 ;
echo "<div>";
echo "Name | Age";

foreach ($datas as $data ) {
    // if it's multiple of 3 you need a new div (return boolean)
    $newDiv = $i++ % 3 == 0;

    if ($newDiv && $i > 1) {
        echo "</div>";
        echo "<div>";
        echo "Name | Age";
    }

    echo "<div>".$data->name."|". $data->age . "</div>";
}
echo "</div>";

如何限制foreach php

2 个答案: