WordPress Version: 5.6
/**
* Determines if a given value is integer-like.
*
* @since 5.5.0
*
* @param mixed $maybe_integer The value being evaluated.
* @return bool True if an integer, otherwise false.
*/
function rest_is_integer($maybe_integer)
{
return is_numeric($maybe_integer) && round((float) $maybe_integer) === (float) $maybe_integer;
}