PHP Manual
Prev		Next

variant_or

(PHP 5)

variant_or -- Performs a logical disjunction on two variants

Description

mixed variant_or ( mixed left, mixed right )

Performs a bitwise OR operation, according to the following truth table; note that this is slightly different from a regular OR operation.

Table 1. Variant OR Rules

If `left` is	If `right` is	then the result is
`TRUE`	`TRUE`	`TRUE`
`TRUE`	`FALSE`	`TRUE`
`TRUE`	`NULL`	`TRUE`
`FALSE`	`TRUE`	`TRUE`
`FALSE`	`FALSE`	`FALSE`
`FALSE`	`NULL`	`NULL`
`NULL`	`TRUE`	`TRUE`
`NULL`	`FALSE`	`NULL`
`NULL`	`NULL`	`NULL`

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.

Prev	Home	Next
variant_not	Up	variant_pow

Copyright © 1997 - 2007 by the PHP Documentation Group. This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later. A copy of the Open Publication License is distributed with this manual, the latest version is presently available at http://www.opencontent.org/openpub/. Please see full copyright text at http://www.php.net/manual/en/copyright.php Original version of the above documentation is available at http://www.php.net/manual/en/

Please click on Php mysql Customer Support System
Please Also click on our Web developers Showcase