php - 每 4 次迭代创建行并关闭 div

Question

假设这是分配给 $my_array 变量的我的数据数组。

[0] => Array
    (
        [0] => 0 seconds
        [1] => 05:00 PM to 6:00 PM
    )

[1] => Array
    (
        [0] => 6 minutes
        [1] => 08:00 AM to 9:00 AM
    )

[2] => Array
    (
        [0] => 15 minutes
        [1] => Array
            (
                [0] => 08
                [1] => 15 AM
            )

    )

[3] => Array
    (
        [0] => 15 minutes
        [1] => Array
            (
                [0] => 08
                [1] => 30 AM
            )

    )

[4] => Array
    (
        [0] => 15 minutes
        [1] => Array
            (
                [0] => 08
                [1] => 45 AM
            )

    )

[5] => Array
    (
        [0] => 15 minutes
        [1] => 09:00 AM to 10:00 AM
    )

[6] => Array
    (
        [0] => 15 minutes
        [1] => Array
            (
                [0] => 09
                [1] => 15 AM
            )

    )

[7] => Array
    (
        [0] => 15 minutes
        [1] => Array
            (
                [0] => 09
                [1] => 30 AM
            )

    )

[8] => Array
    (
        [0] => 15 minutes
        [1] => Array
            (
                [0] => 09
                [1] => 45 AM
            )

    )

[9] => Array
    (
        [0] => 6 minutes
        [1] => 10:00 AM to 11:00 AM
    )

[10] => Array
    (
        [0] => 6 minutes
        [1] => Array
            (
                [0] => 12
                [1] => 30 PM
            )

    )

)

我有这样的东西:

foreach($my_array as $key => $a) {
    if(!is_array($a[1)) { ?>
        <div><?php echo $a; ?></div>
        <?php if($key % 4 == 0) { ?>
             <div class="row">
       <?php } ?>
    <?php } ?>

       <div class="col-md-3">
            <?php echo $a[0]; ?>
       </div>

    <?php if(!is_array($a[1)) { ?>
        <?php if($key % 4 == 0) { ?>
             </div>
        <?php }
    } ?>
}

如果第二个数组元素不是数组“if(!is_array($a[1))”并且在 4 次迭代后关闭 div，我想要实现的是创建一个包含 4 列的新行。

为了清楚起见，我根据上面给出的数据创建了一个我想要实现的静态 html:

输出应该是这样的:

Answer 1

我对所有那些打开和关闭 PHP 标记做了一点清理，并选择回显 HTML 代码位。很好地清除了一些语法错误。

foreach($my_array as $key => $a) {

    if(!is_array($a[1])) {
        echo "<div>" . $a[1] . "</div>\n";
        if($key % 4 == 0) {
            echo "<div class=\"row\">\n";
        }
    }

    // create a new row div before the fourth divisible index.
    // this was necessary to insert the div below the timeblock div ($a[1])
    if((($key - 1) % 4) == 0) {
        echo "<div class=\"row\">\n";
    }

    echo "\t<div class=\"col-md-3\">" . $a[0] . "</div>\n";

    // added condition to close the row div on the last item
    if(($key % 4 == 0) || ($key == (count($my_array) -1))) {
        echo "</div>\n";
    }
}