如何在PHP中使用array_fill函数创建数组？

Question

I want to create an array like below

array(2) {
  [0]=>
  array(2) {
    [0]=>
    int(1)
    [1]=>
    int(0)
  }
  [1]=>
  array(2) {
    [0]=>
    int(2)
    [1]=>
    int(0)
  }
}

Here first element of the inner array will be incremental and second element will always be 0. The outer array length should be 30. I spent a lot of of time on it but couldn't solve it by my one. Can any one of you help me ? Thanks

Answer 1

You could do it using array_map() and range():

$o = array_map(function($a) { return array($a, 0); }, range(1, 30));

Demo