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"
);

// haystack数组

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

我想,以检查是否$a有与之相匹配的b与它的准确key和value

并且如果每个键和值$a都具有精确匹配$b....我想将变量的值增加$c1,依此类推......

正如我们从上面看到的那样,有3种可能的匹配...并且据说可以将值增加$c3

$c = "3";

我希望有些天才可以帮助我......

Answer 1

你可以看看php的array_diff_assoc()功能或array_intersect()功能.

编辑

以下是计算匹配值的示例:

<?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.