(PHP 4 >= 4.0.5, PHP 5, PHP 7)
Finds whether a variable is a scalar
bool is_scalar ( mixed $var )
Finds whether the given variable is a scalar.
Scalar variables are those containing an integer, float, string or boolean. Types array, object and resource are not scalar.
Note:
is_scalar() does not consider resource type values to be scalar as resources are abstract datatypes which are currently based on integers. Thi