从PHP数组中删除false值的更短方法

Question

Presently I'm using array_values(array_filter($arr)) to remove false values from an array.

It feels like there's most likely a built-in function that does this more tersely.

Answer 1

Sure.

function f($arr) {return array_values(array_filter($arr));}

Now you can do:

$b = f($a);

Much more terse! Much less readable.

array_values(array_filter(..)) is very explicit as to what it does. This is many times more important than terseness.