i have two arrays, and i use array_diff_assoc() php function for get the difference, but it always returns the comm set as the difference, but it should be new q sets whats the wrong with this, please help
arrays--
Array ( [0] => Array ( [12] => new q sets ) [1] => Array ( [11] => common set ) )
Array ( [0] => Array ( [11] => common set ) )
after use array_diff_assoc() o p
Array ( [1] => Array ( [11] => common set ) )
Two values from key => value pairs are considered equal only if
(string) $elem1 === (string) $elem2. In other words a strict check takes place so the string representations must be the same.
http://php.net/manual/en/function.array-diff-assoc.php
The (string) value of any array is "Array". Thus, your call to array_diff_assoc is effectively comparing these two things:
Array ( [0] => "Array" [1] => "Array" )
Array ( [0] => "Array" )
Since the thing that is different between those two is the [1] key/value pair from the first array, you get that back ([1] => Array( [11] => common set )).
in array_diff_assoc(), keys are also compared. Since [0] is available in second array and [1] is not available in second array so thats why the result is Array ( [1] => Array ( [11] => common set ) ) .