用while/foreach构建一个复杂的表-Buildacomplicatedtablewithwhile/foreach

I'm trying to build a table of results from an array. I currently have results outputting like this:

我正在尝试从数组中构建一个结果表。我目前的结果输出如下:

   ID       VALUE             EXTRA
 --------------------------------------
|  1  |     Value 1         | Extra 1  |
|-----|---------------------|----------|
|  1  |     Value 2         | Extra 2  |
|-----|---------------------|----------|
|  2  |     Value 3         | Some 1   |
|-----|---------------------|----------|
|  3  |     Value 4         | Some 2   |
|-----|---------------------|----------|
|  3  |     Value 5         | Nothing  |
 --------------------------------------  

Note the repeating ID value. What I'd like to do is build a loop inside my current loop that will not display duplicate IDs. Something like this:

请注意重复的ID值。我想要做的是在我当前的循环中构建一个循环,它不会显示重复的ID。像这样的东西:

   ID       VALUE             EXTRA
 --------------------------------------
|  1  |     Value 1         | Extra 1  |
|     |---------------------|----------|
|     |     Value 2         | Extra 2  |
|-----|---------------------|----------|
|  2  |     Value 3         | Some 1   |
|-----|---------------------|----------|
|  3  |     Value 4         | Some 2   |
|     |---------------------|----------|
|     |     Value 5         | Nothing  |
 --------------------------------------  

Here's my current code, simplified:

这是我当前的代码,简化:

Is there a way to build this table dynamically in the way I want? Or should I rethink my strategy?

有没有办法以我想要的方式动态构建这个表?或者我应该重新考虑我的策略?

2 个解决方案

';
    if($previousId != $f1){ // fill the cell only if the new Id is different from the previous value
        $html .= ''.$f1.'';
    } else {
        $html .= ' ';
    }
            $previousId = $f1;
    $html .= ''.$f2.'';
    $html .= ''.$f3.'';
    $html .= '';

    $i++;
    }
            echo $html;
 ?>