检查数组中是否包含多个相同的值[关闭]

Question

I have a array like below

$array1 = Array
(
    [0] => 20225,2017-02-20
    [1] => 20225,2017-02-20
    [2] => 10027,2017-02-20
    [3] => 10027,2017-02-20
    [4] => 10021,2017-02-20
    [5] => 20205,2017-02-20
    [6] => 50003,2017-02-20
    [7] => 20225,2017-02-20
    [8] => 20205,2017-02-20
    [9] => 10021,2017-02-20
    [10] => 50003,2017-02-20
    [11] => 10027,2017-02-20
    [12] => 20225,2017-02-20
    [13] => 20225,2017-02-21
    [14] => 20225,2017-02-21
)

if the array contain same result more than 2, I want to get one of those values to another array called $array2.

Please help me to do this

Answer 1

As You said:- if the array contain same result more than 2, I want to get one of those values to another array called $array2.

You can do it like below:-

$array_new = array_count_values($array1);
$array2 = array();
foreach($array_new as $key=>$val){
    if($val >1){ //or do $val >2 based on your desire
      $array2[] = $key;
    }
}
print_r($array2);

Output:- https://eval.in/834306 OR https://eval.in/834402

If you want to check that array contains duplicates or not then you can do like this:-

if(count(array_unique($array1)) < count($array1)){
  echo "Array have some duplicates";
}else{
  echo "Array have unique elements";
}

Output:-https://eval.in/834312

If you want to get only unique array then you can do like below:-

$array1 = array_values (array_unique($array1));

Output:- https://eval.in/834317