Question

我正在尝试创建一个简单的foreach循环，它将对数组中的每16条记录进行分组。我还有另一个计数器（$ s），我需要在4点后重置。

这是我的代码

$a = array(
  'book-1' => 'Book Title 1',
  'book-2' => 'Book Title 2',
  'book-3' => 'Book Title 3',
  'book-4' => 'Book Title 4',
  'book-5' => 'Book Title 5',
  'book-6' => 'Book Title 6',
  'book-7' => 'Book Title 7',
  'book-8' => 'Book Title 8',
  'book-9' => 'Book Title 9'
);

$i = 1;
$bookshelf = 1;
$s=0;
foreach ( $a as $k => $v ) 
{

    if ($i == 9 || $i == 1)
    {  
      echo '<div id="bookshelf-'.$bookshelf.'"></div>';
      $bookshelf++;
    }


    if ($i%4 == 1)
    {  
      echo '<div class="bookshelf-bottom">';
    }

    if ($i > 5)
    {  
      $s=0;
    }

    $s++;

    echo '<div class="book-frame-'.$s.'">'.$v.'</div>';

    if ($i%4 == 0)
    {
      echo '</div>';
    }

    $i++;
}
if ($i%4 != 1) echo '</div>';

我想要导出的是：

<div id="bookshelf-1" class="bookshelf-top"></div>

<div class="bookshelf-bottom">
<div class="book-frame-1">Book Title 1</div>
<div class="book-frame-2">Book Title 2</div>
<div class="book-frame-3">Book Title 3</div>
<div class="book-frame-4">Book Title 4</div>
</div>

<div class="bookshelf-bottom">
<div class="book-frame-1">Book Title 5</div>
<div class="book-frame-2">Book Title 6</div>
<div class="book-frame-3">Book Title 7</div>
<div class="book-frame-4">Book Title 8</div>
</div>

<div class="bookshelf-bottom">
<div class="book-frame-1">Book Title 9</div>
</div>

Answer 1

看看

<?php
$a = array(
    'book-1' => 'Book Title 1',
    'book-2' => 'Book Title 2',
    'book-3' => 'Book Title 3',
    'book-4' => 'Book Title 4',
    'book-5' => 'Book Title 5',
    'book-6' => 'Book Title 6',
    'book-7' => 'Book Title 7',
    'book-8' => 'Book Title 8',
    'book-9' => 'Book Title 9'
);

$i = 1;
$bookshelf = 1;
$s=0;
foreach ( $a as $k => $v ) {
    $s++;
    if ($i == 9 || $i == 1) {
        if($i == 1)
            echo '<div id="bookshelf-'.$bookshelf.'" class="bookshelf-top"></div>';
        else
            echo '<div id="bookshelf-'.$bookshelf.'"></div>';
      $bookshelf++;
    }
    if($s == 1)
        echo '<div class="bookshelf-bottom">';
    echo '<div class="book-frame-'.$s.'">'.$v.'</div>';
    if($s == 4) {
        echo '</div>';
        $s = 0;
    }
    $i++;
}
?>

Answer 2

如果代码变得更复杂，那么你将无限地理解这种做法。相反，我会选择这样的事情：

chartWrapper.draw();  // initial draw of the chart
var chart = chartWrapper.getChart();
var cli = chart.getChartLayoutInterface();
var bb = cli.getChartAreaBoundingBox();
var vAxisMax = cli.getVAxisValue(bb.top);

这使用array_chunk创建你的部分，然后迭代这些部分来制作html。

编辑：如果您想要包含一个包含更多值的完整数组以及您需要生成的更多HTML，我们很乐意修改此foreach并解释它是如何工作的。< / p>

重置foreach循环内的计数器

2 个答案: