PHP find array without repeating numbers

This time I will bring you PHP searchArrayDoes not repeat numbers. What are the Notes for PHP to search for arrays that do not repeat numbers? The following is a practical case, let’s take a look.

The example in this article describes the implementation method of PHP searching for numbers that appear only once in an array. Share it with everyone for your reference, the details are as follows:

question:

Except for two numbers in an integer array, all other numbers appear twice. Please write a program to find these two numbers that only appear once.

The implementation code is as follows:

<?php
function FindNumsAppearOnce($array)
{
  // write code here
  // return list, 比如[a,b]，其中ab是出现一次的两个数字
  $count = array_count_values($array);
  foreach($count as $k=>$v) {
    if($v == 1) {
      $new_arr[] = $k;
    }
  }
  return $new_arr;
}
$arr=array('22','44','66','11','11','44','33');
print_r(FindNumsAppearOnce($arr));

Output:

Array
(
  [0] => 22
  [1] => 66
  [2] => 33
)

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!

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