计算两个平面关联数组之间的差异

Question

Array ( [34] => A [35] => B [36] => B [37] => C ) //This is the Answer

比较

Array ( [34] => B [35] => C [36] => A [37] => D ) //This is the right data

我尝试过

array_diff_key

和

array_diff

函数，但都只返回

Array()

我想计算差异的数量，有没有更快的方法？我做错了什么？

Answer 1

count(array_diff_assoc($array1, $array2));

Answer 2

$array1 = array ( [34] => A [35] => B [36] => B [37] => C ) 
$array2 = array( [34] => B [35] => C [36] => A [37] => D ) 
$c = count(array_diff($array1, $array2));
echo $c;

这应该适合你。

Answer 3

您可以使用array_diff_assoc()。

<?php

$array1 = array('34' => 'A', '35' => 'B', '36' => 'B', '37' => 'C');
$array2 = array('34' => 'B', '35' => 'C', '36' => 'A', '37' => 'D');
$count = count(array_diff_assoc($array1, $array2));

echo $count; //4

?>

演示：http://codepad.org/Zzilrn9C