Remove NULL values from PHP arrays with 1 line

Remove NULL values only

$new_array_without_nulls = array_filter($array_with_nulls, ‘strlen’);

Remove any FALSE values

This includes NULL values, EMPTY arrays, etc.

$new_array_without_nulls = array_filter($array_with_nulls);

Thanks to http://briancray.com/2009/04/25/remove-null-values-php-arrays/