怎么使数组的下标从0开始

有时候我们会用到一个数组的键（下标）默认从0开始的需求，让我们来看例子：

array (size=2)
  4 => 
    array (size=3)
      'goods_name' => string '发放是否' (length=12)
      'goods_price' => string '1111.00' (length=7)
      'goods_nums' => string '111' (length=3)
  5 => 
    array (size=3)
      'goods_name' => string '是范德萨发 ' (length=16)
      'goods_price' => string '22.00' (length=5)
      'goods_nums' => string '113' (length=3)

使用 array_values($数组) 会把数组的键默认从下标0开始  结果：

array (size=2)
  0 => 
    array (size=3)
      'goods_name' => string '发放是否' (length=12)
      'goods_price' => string '1111.00' (length=7)
      'goods_nums' => string '111' (length=3)
  1 => 
    array (size=3)
      'goods_name' => string '是范德萨发 ' (length=16)
      'goods_price' => string '22.00' (length=5)
      'goods_nums' => string '113' (length=3)