How to convert the null values to empty string in php array?

Question

I want to convert this array that Array[4] should not give null it can give blank space (empty string).

Array (
    [0] => 1
    [1] => 4
    [2] =>         


        

Answer 1

Then you should just loop through array elements, check each value for null and replace it with empty string. Something like that:

foreach ($array as $key => $value) {
    if (is_null($value)) {
         $array[$key] = "";
    }
}

Also, you can implement checking function and use array_map() function.