php compare two associative arrays

Question

i have these two associative arrays

// the needle array

$a = array(
\"who\" => \"you\", 
\"what\" => \"thing\", 
\"where\" => \         


        

Answer 1

you can look into the php's array_diff_assoc() function or the array_intersect() function.

EDIT

Here's a sample on counting the matched values:

<?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 link.