Type
====

bool _`is_empty` ( mixed *$val* )
`````````````````````````````````
Returns true if the given *$val* is empty, otherwise false. The following
examples would return true::

    {is_empty( "" )}
    {is_empty( 0 )}
    {is_empty( "0" )}
    {is_empty( false )}

And the rest returns false::

    {is_empty( "false" )}
    {is_empty( "I am empty" )}

Trying to out smart the template engine by saying that string is empty ("I am
empty"), does not work :-).


bool _`is_array` ( mixed *$val* )
`````````````````````````````````
Returns true if the given *$val* is an array, otherwise false::

    {is_array( array( 1 ) )}

Returns obviously true.


bool _`is_float` ( mixed *$val* )
`````````````````````````````````
Returns true if the given *$val* is a float, otherwise false::

    {is_float( 2.1 )}

Returns true.


bool _`is_int` ( mixed *$val* )
```````````````````````````````
Returns true if the given *$val* is an integer, otherwise false::

    {is_int( 2 )}

Returns true.


bool _`is_numberic` ( mixed *$val* )
````````````````````````````````````
Returns true if the given *$val* is an numberic value, otherwise false::

    {is_int( 2 )}
    {is_numberic( 2.2 )}

Return all true.


bool _`is_object` ( mixed *$val* )
``````````````````````````````````
Returns true if the given *$val* is an object, otherwise false::

    {use $myObject}
    {is_object( $myObject )}


bool _`is_class` ( mixed *$val*, string *$class* )
``````````````````````````````````````````````````
Returns true if the given *$val* is the class *$class*, otherwise false::

    {use $myObject}
    {is_class( $myObject, "MyClass" )}


bool _`is_instance` ( mixed *$val*, string *$class* )
`````````````````````````````````````````````````````
Returns true if the given *$val* is an instance of class *$class*, otherwise false::

    {use $myObject}
    {is_instance( $myObject, "MyClass" )}


bool _`is_scalar` ( mixed *$val* )
``````````````````````````````````
Returns true if the given *$val* is a scalar; thus containing an integer,
float, string, or object. Non scalars, array and object return false::

    {is_scalar( "Hello" )}

Return true.


bool _`is_string` ( mixed *$val* )
``````````````````````````````````
Returns true if the given *$val* is a string, otherwise false::

    {is_string( "Hello" )}

Return true.


bool _`is_set` ( mixed *$val* )
```````````````````````````````
Returns true if the given *$val* is set, otherwise false::

    {var $a}
    {is_set( $a )}

Return false, but::

    {var $a = 5}
    {is_set( $a )}

Return true.


string _`get_class` ( mixed *$val* )
````````````````````````````````````
Returns the class name of the given object::

    {use $obj}
    {get_class( $obj ) }

Outputs the class name.



..
   Local Variables:
   mode: rst
   fill-column: 79
   End:
   vim: et syn=rst tw=79