Remove NULL, FALSE, and '' - but not 0 - from a PHP array

Question

I want to remove NULL, FALSE and \'\' values .

I used array_filter but it removes the 0\' s also.

Answer 1

From http://php.net/manual/en/function.array-filter.php#111091 :

If you want to remove NULL, FALSE and Empty Strings, but leave values of 0, you can use strlen as the callback function:

array_filter($array, 'strlen');