新手。 PHP如何提取数组的最后一个元素的键值？

Question

For example, I have an array:

$result = array(
array (
      'post_id'=>$post_id,
      'user_id'=>90,
),
array (
      'post_id'=>$post_id,
      'user_id'=>80,
),
.....

}

And I'd like to get the last $result element's key value - (e.g user_id = 10) 10. Is it somehow possible to make it?

Answer 1

You can use end for this

$end = end($result);
print $end['post_id'];//etc.

This will also reset the internal pointer of the array, so if you use current, next or anything similar after that, you'll need to reset first.