Question

想法是,将有一个与目录中每个图像的html相呼应的实验室功能。

我的数字是,每个(有些情况一样)都走过这个阵列,把价值观分配到 im的价值观中。

但是,为了发挥职能,分配能够达到的等级价值。

我需要能够根据规定而不是人工的定位安排班级。

一组物体的相对位置。例如,在目录中,有50个图像显示,这些文档中有许多功能为每个项目分配类别(一个功能在变数中完成,即怀疑)生成成像标记,通过5个类别,产出与产出一样。

<img class="a" src="example">
<img class="b" src="example">
<img class="c" src="example">
<img class="d" src="example">
<img class="e" src="example">

<img class="a" src="example">
<img class="b" src="example">
<img class="c" src="example">
<img class="d" src="example">
<img class="e" src="example">


<img class="a" src="example">
<img class="b" src="example">
<img class="c" src="example">
<img class="d" src="example">
<img class="e" src="example">


<img class="a" src="example">
<img class="b" src="example">
<img class="c" src="example">
<img class="d" src="example">
<img class="e" src="example">


<img class="a" src="example">
<img class="b" src="example">
<img class="c" src="example">
<img class="d" src="example">
<img class="e" src="example">


<img class="a" src="example">
<img class="b" src="example">
<img class="c" src="example">
<img class="d" src="example">
<img class="e" src="example">

现在,第50和50号;第5号是假设的,我更有可能使用7或12个班级分配周期。

确实,请我如何这样做? 我只读过我自己的东西,这确实很重要。

Answer 1

$cycle = 5;    
$classes = array(  a ,  b ,  c ,  d ,  e ,  f ,  g ,  h  );
$i = 0;
foreach( $files as $file ) {
    echo  <img class=" .$classes[ $i % $cycle ]. " src=" .$file. "> ;
    ++$i;
}

Answer 2

你基本上寻找模块操作者。我认为,它也以javascript语提供,下面是两个地方使用的购买力平价例子。

To cycle through an array of available class names.
To insert a line-break after each X images.

rel=“nofollow”>modulo营运人%^{<<<>Docs/em><>} > 退还一个司业务的剩余价值。

rel=“nofollow> Demo:

$images = array_fill(0, 50,  example ); // 50 example images
$classes = range( a ,  e ); // 5 example classes (a-e)

foreach($images as $index => $src)
{
    # get image class    
    $class = $classes[$index % count($classes)];

    printf( <img class="%s" src="%s"> ."
", $class, $src);

    # echo empty line after each 5th image
    if (4 === $index % 5)
        echo "
";
}

产出:

<img class="a" src="example">
<img class="b" src="example">
<img class="c" src="example">
<img class="d" src="example">
<img class="e" src="example">

<img class="a" src="example">
<img class="b" src="example">
<img class="c" src="example">
<img class="d" src="example">
<img class="e" src="example">

<img class="a" src="example">
<img class="b" src="example">
...

Answer 3

如。

This will cycle through values in an array eg. [1,2,3,4,5] and reset_cycle will reset the cycle if necessary, although I don t think this use-case would require a reset.

Answer 4

You could use a modulo (%) to make this happen. In your loop keep track of a number counting how much iterations you ve had of the loop. Then use the modulo to assign a different class to the html. For instance:

$rowCount = 5; //number of images in a row
$i = 1;
foreach($images as $image) {
    $classNumber = $i % $rowCount;
    echo  <img class="image_  . $classNumber .  " src="example"> ;
    $i++;
}

I wrote this from the top of my head without testing, so there could be an error in there somewhere, but it s to give you an idea what you could do. Check out this tiny example. Or google for "php modulo".

I hope this helps.

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