Sergio Alves

Given an integer array nums, move all 0‘s to the end of it while maintaining the relative order of the non-zero elements.

Note that you must do this in-place without making a copy of the array.

Example 1:

Input: nums = [0,1,0,3,12]
Output: [1,3,12,0,0]

Example 2:

Input: nums = [0]
Output: [0]

Constraints:

• 1 <= nums.length <= 104
• -231 <= nums[i] <= 231 - 1

PHP Code

class Solution {

    /**
     * @param Integer[] $nums
     * @return NULL
     */
    function moveZeroes(&$nums) {
        for($i=0; $i<count($nums); $i++) {
            if ($nums[$i] == 0) {
                $temp = $nums[$i];
                unset($nums[$i]);
                array_push($nums, $temp);
            }
        }
        return $nums;
    }
}