使用递归函数来模拟多维数组

Question

下面是我的阵列......

  Array(

    [Open+Sans] => Array
      (
        [0] => normal
        [1] => lightitalic
        [2] => light
        [3] => semibold
      )

    [Nova+Script] => Array
      (
        [0] => normal
      )

    [Nova+Slim] => Array
      (
        [0] => normal
      )

    [Old+Standard+TT] => Array
      (
        [0] => normal
      )
  )

我希望键被内爆和子数组被逗号破坏，最终预期的字符串如下所示：

Open + Sans：正常，轻盈，轻盈，半哑| Nova +脚本：正常| Nova + Slim：正常|老+标准+ TT：正常

谢谢你的时间..

Answer 1

我猜这应该有用

$output;
foreach($input_array as $k => $v){
    output.= $k.":";
    output.= implode(",",$v);
    output.= "|";
}