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<?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 5.4.0 - 7.1.0
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 - 5.3.29
array(1) { ["a"]=> array(1) { ["b"]=> string(1) "x" } } array(0) { }