Checking all array values at once

Question

Is there a simple way to check if all values in array are equal to each other?

In this case, it would return false:

$array[0] = 'yes';
$array[1] = 'yes';
$array[2] = 'no';

And in this case, true:

$array[0] = 'yes';
$array[1] = 'yes';
$array[2] = 'yes';

So, yeah, is there a function/method to check all array values at once?

Thanks in advance!

Answer 1

Not a single function, but the same could be achieved easily(?) with:

count(array_keys($array, 'yes')) == count($array)

Answer 2

another possible option

if(count(array_unique($array)) == 1)