How to remove null values from an array? [duplicate]

Question

I have an array

Array ( [0] => 0 [1] => [2] => 3 [3] => )

i want to remove null values from this and the result should be like this

Array ( [0] => 0 [1] => 3) i don't want to remove 0 value from array.

Answer 1

this will do the trick:

array_filter($arr, static function($var){return $var !== null;} );

Code Example: https://3v4l.org/jtQa2

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for older versions (php<5.3):

function is_not_null ($var) { return !is_null($var); }
$filtered = array_filter($arr, 'is_not_null');

Code Example: http://3v4l.org/CKrYO

Answer 2

You can use array_filter() which will get rid of the null empty values from the array

print_r(array_filter($arr, 'strlen'));