php比较两个关联数组

Question

我有这两个associative arrays

// 针阵列

$a = array(
"who" => "you", 
"what" => "thing", 
"where" => "place",
"when" => "hour"
);

// 干草堆数组

$b = array(
"when" => "time", 
"where" => "place", 
"who" => "you",
"what" => "thing"
);

我想检查$a 是否与b 匹配，它与key 和value 完全相同

如果$a 中的每个键和值在$b 中都完全匹配......我想将变量$c 的值增加1，依此类推......

正如我们从上面看到的那样，有 3 种可能的匹配... 并且据说结果将$c 的值增加了 3

$c = "3";

我希望有天才可以帮助我...

Answer 1

你可以查看php的array_diff_assoc()函数或者array_intersect()函数。

编辑

这是一个计算匹配值的示例：

<?php
  $a = array(
    "who" => "you", 
    "what" => "thing", 
    "where" => "place",
    "when" => "hour"
  );
  // the haystack array
  $b = array(
    "when" => "time", 
    "where" => "place", 
    "who" => "you",
    "what" => "thing"
  );
  $c = count(array_intersect($a, $b));
  echo $c;
?>

CODEPAD链接。