检查两个以上的数组是否具有相同的数据 - Check if more than two arrays have same data

Check if more than two arrays have same data

假设所有这些都有相同的数据。

我将如何在这个多维数组中做到这一点。

我基本上试图使用

array_intersect($array,$array);

但我无法弄清楚我应该做什么才能做到这一点。

array(14) {
  [0]=>
  string(5) "0.1"
    [1]=>
    string(5) "0.2"
    [2]=>
    string(5) "0.3"
    [3]=>
    string(5) "0.4"
    [4]=>
    string(5) "0.1"
    [5]=>
    string(5) "0.2"
    [6]=>
    string(5) "0.3"
    [7]=>
    string(5) "0.4"
    [8]=>
    string(5) "0.2"
    [9]=>
    string(5) "0.3"
    [10]=>
    string(5) "0.4"
    [11]=>
    string(5) "0.1"
    [12]=>
    string(5) "0.2"
    [13]=>
    string(5) "0.3"
  }

不确定您到底在寻找什么：

$i=0;  // index of the orginal array
$common = array_reduce($array, function ($c, $v) use (&$i) {
    foreach ($v['data'] as $nb) {
        $c[$nb][] = $i; // store the index for the current number
    }
    $i++; // next index
    return $c;
}, array());
// remove the unique values
$common = array_filter($common, function($item) { return count($item)>1; });
// sort by decreasing number of indexes
uasort($common, function ($a, $b) {return count($b) - count($a);});
print_r($common);

这将生成一个以公共数字作为键的关联数组，以及一个以原始数组的索引作为值的数组：

Array
(
    [5] => Array (
            [0] => 0
            [1] => 1
            [2] => 2
            [3] => 3
        )
    [4] => Array (
            [0] => 0
            [1] => 1
            [2] => 3
        )
    [2] => Array (
            [0] => 0
            [1] => 1
            [2] => 3
        )
    [6] => Array (
            [0] => 1
            [1] => 3
        )
    [1] => Array (
            [0] => 1
            [1] => 3
        )
    [3] => Array (
            [0] => 1
            [1] => 3
        )
)