Question

If an array has only one element, the count result will be 1. If the array is uncountable, the result is also 1. So, How to know it’s one element or uncountable?
Edit
php menue: If var is not an array or an object with implemented Countable interface, 1 will be returned.

Answer 1

From PHP manual: http://www.php.net/manual/en/function.count.php

Returns the number of elements in var. If var is not an array or an
object with implemented Countable interface, 1 will be returned. There
is one exception, if var is NULL, 0 will be returned.

you could try this,

if (!method_exists($someVar, 'count') && !(is_array($someVar))) {
    echo 'cannot count';
}
else {
    echo count($someVar);
}

This should work with arrays, objects and simple variables.