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@ 2013-06-07T03:54:09Z

<?php


function array_diff_assoc_recursive($array1, $array2)
{
    foreach($array1 as $key => $value)
    {
        if(is_array($value))
        {
              if(!isset($array2[$key]))
              {
                  $difference[$key] = $value;
              }
              elseif(!is_array($array2[$key]))
              {
                  $difference[$key] = $value;
              }
              else
              {
                  $new_diff = array_diff_assoc_recursive($value, $array2[$key]);
                  if($new_diff != FALSE)
                  {
                        $difference[$key] = $new_diff;
                  }
              }
          }
          elseif(!isset($array2[$key]) || $array2[$key] != $value)
          {
              $difference[$key] = $value;
          }
    }
    return !isset($difference) ? 0 : $difference;
} 

$result = array_diff_assoc_recursive(array('a' => array('b' => 'x')), array('a' => array('c' => 'x')));
var_dump($result);
$result = array_diff_assoc(array('a' => array('b' => 'x')), array('a' => array('c' => 'x')));
var_dump($result);

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: array(1) { ["a"]=> array(1) { ["b"]=> string(1) "x" } } Warning: Array to string conversion in /in/f05nC on line 37 Warning: Array to string conversion in /in/f05nC on line 37 array(0) { }
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: array(1) { ["a"]=> array(1) { ["b"]=> string(1) "x" } } Notice: Array to string conversion in /in/f05nC on line 37 Notice: Array to string conversion in /in/f05nC on line 37 array(0) { }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 7.3.32 - 7.3.33: array(1) { ["a"]=> array(1) { ["b"]=> string(1) "x" } } array(0) { }

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