is_long

The is_long() function in PHP is simply an alias of is_int() - for full details see the is_int() function.

is_int

The is_int() function allows you to check if a particular variable is an integer (type).

PHP

$number = 9.5;
var_dump( is_int($number) );
// => false

Ruby

number = 9.5;
puts number.is_a?(Integer);
# => false