PHP将数组嵌套到HTML列表中 [英] PHP nested array into HTML list

问题描述

试图掌握PHP，但是我完全不知道如何做到这一点.

Trying to get to grips with PHP, but I have absolutely no idea how to do this.

我想要这个数组:

$things = array('vehicle' => array('car' => array('hatchback', 'saloon'),'van','lorry'),
                'person' => array('male', 'female'),
                'matter' => array('solid', 'liquid', 'gas'),
            );

并将其转换为HTML中的类似内容

and turn it into this into something like this in HTML:

• 车辆
  • 汽车
    • 掀背车
    • 沙龙
    • Vehicle
      • Car
        • Hatchback
        • Saloon
        • 男
        • 女
        • 固体
        • 液体
        • 气体

        尝试了多种搜索解决方案，但根本无法解决任何问题.

        Tried a number of solutions from searching, but cannot get anything to work at all.

        推荐答案

        您正在寻找的东西称为递归.下面是一个递归函数，如果array键的值也是一个数组，则该递归函数将自行调用.

        What you are looking for is called Recursion. Below is a recursive function that calls itself if the value of the array key is also an array.

        function printArrayList($array)
        {
            echo "<ul>";
        
            foreach($array as $k => $v) {
                if (is_array($v)) {
                    echo "<li>" . $k . "</li>";
                    printArrayList($v);
                    continue;
                }
        
                echo "<li>" . $v . "</li>";
            }
        
            echo "</ul>";
        }
        

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