Delicious Bookmark this on Delicious Share on Facebook SlashdotSlashdot It! Digg! Digg



PHP : Function Reference : COM and .Net (Windows) : variant_add

variant_add

"Adds" two variant values together and returns the result (PHP 5)
mixed variant_add ( mixed left, mixed right )

Adds left to right using the following rules (taken from the MSDN library), which correspond to those of Visual Basic:

Table 27. Variant Addition Rules

If Then
Both expressions are of the string type Concatenation
One expression is a string type and the other a character Addition
One expression is numeric and the other is a string Addition
Both expressions are numeric Addition
Either expression is NULL NULL is returned
Both expressions are empty Integer subtype is returned


See also variant_sub().

Note:

As with all the variant arithmetic functions, the parameters for this function can be either a PHP native type (integer, string, floating point, boolean or NULL), or an instance of a COM, VARIANT or DOTNET class. PHP native types will be converted to variants using the same rules as found in the constructor for the VARIANT class. COM and DOTNET objects will have the value of their default property taken and used as the variant value.

The variant arithmetic functions are wrappers around the similarly named functions in the COM library; for more information on these functions, consult the MSDN library. The PHP functions are named slightly differently; for example variant_add() in PHP corresponds to VarAdd() in the MSDN documentation.

Change Language


Follow Navioo On Twitter
COM
DOTNET
VARIANT
com_addref
com_create_guid
com_event_sink
com_get_active_object
com_get
com_invoke
com_isenum
com_load_typelib
com_load
com_message_pump
com_print_typeinfo
com_propget
com_propput
com_propset
com_release
com_set
variant_abs
variant_add
variant_and
variant_cast
variant_cat
variant_cmp
variant_date_from_timestamp
variant_date_to_timestamp
variant_div
variant_eqv
variant_fix
variant_get_type
variant_idiv
variant_imp
variant_int
variant_mod
variant_mul
variant_neg
variant_not
variant_or
variant_pow
variant_round
variant_set_type
variant_set
variant_sub
variant_xor
eXTReMe Tracker