PHP：检查所有嵌套数组中的重复值

Question

我想找出数组中所有嵌套数组中的重复值。 目前我的数组就是这样的。

Array $bigarray = Array (
    [431] => Array (
     [0] => orange 
     [1] => apple 
     [2] => pine 
    ) 
    [440] => Array ( 
     [0] => orange 
     [1] => lilly 
    ) 
    [444] => Array ( 
     [0] => orange 
     [1] => pine 
    ) 
) 

我想只提取orange这是在所有

arrays('431','440','444'). 

Woudl你能给我一些想法...？ 在此先感谢。

Answer 1

您可以使用array_intersect()：

$intersected = null; 
foreach ($bigarray as $arr) { 
    $intersected = $intersected ? array_intersect($arr, $intersected) : $arr; 
    if (!$intersected) { 
    break; // no reason to continue 
    } 
} 
print_r($intersected); 

Array 
(
    [0] => orange 
) 

Answer 2

$output = null; 

foreach ($bigarray as $array) { 
    if (is_null($output)) { 
    $output = $array; 
    continue; 
    } 

    $output = array_intersect($output, $array); 
    if (empty($output)) { 
    break; 
    // there are no common elements in the array 
    } 
} 

var_dump$(output); 

Answer 3

从文档。

$array1 = array("a" => "green", "red", "blue"); 
$array2 = array("b" => "green", "yellow", "red"); 
$result = array_intersect($array1, $array2); 
print_r($result); 

http://www.php.net/manual/en/function.array-intersect.php

Answer 4

$inAllChunks = call_user_func_array('array_intersect',(array_values($bigarray))); 
var_dump($inAllChunks);