How to compare two array with condition in php - php

Question

I have two arrays like below :
Array_1 : ($array1 - after print the array)
Array ( [companyid] => 589 [company_name] => log_tracking_24 [username] => admin#log24.com [emp_count] => 0 [user_id] => 764 [module_expenses_benefit] => 1 [module_time_attendance] => 1 [module_bank_ftp] => 0 )
Array_2 : ($array2 - after print the array )
Array ( [company_name] => log_tracking_241 [username] => admin#log241.com [password] => [cpassword] => [emp_count] => [module_expenses_benefit] => on [user_id] => 764 [companyid] => 589 )
I compare the two arrays and get different values . for this i try the following,
array_diff($array1,$array2);
Finally i get the following result :
Array ( [company_name] => log_tracking_24 [username] => admin#log24.com [emp_count] => 0 [module_expenses_benefit] => 1 [module_time_attendance] => 1 [module_bank_ftp] => 0 )
but what i want is ,
In my first array : $array1['emp_count'] having the value 0 and my second array : $array2['emp_count'] having the value Null ( '' ).
In this type of situation i want to remove the key and vlaue while the time of array_diff.
How to do this. i try the unset() function . but no use.

Answer 1

You can use array_filter to remove empty elements:
$emptyRemoved = array_filter($linksArray);
To remove value 0 and empty. you may use the following:
$emptyRemoved = remove_empty($linksArray);
function remove_empty($array) {
return array_filter($array, '_remove_zero');
}
function _remove_zero($value) {
return !empty($value) && $value === 0;
}
Pass your both array to remove_empty() function then use array_diff()
$arr1 = remove_empty($array1);
$arr2 = remove_empty($array2);
array_diff($arr1, $arr2);

Answer 2

Yes array_filter did the work for you. Just use:
array_diff(array_filter($array1), array_filter($array2));
See the example:
$entry = array(
0 => 'foo',
1 => false,
2 => -1,
3 => null,
4 => '',
5 => 0
);
print_r(array_filter($entry)); //Array ( [0] => foo [2] => -1 )
So array_filter removes the false, null, ''and 0.