variant_or

(PHP 5, PHP 7, PHP 8)

variant_or — Performs a logical disjunction on two variants

說明

variant_or(mixed $left, mixed $right): variant

Performs a bitwise OR operation. Note that this is slightly different from a regular OR operation.

參數(shù)

left: The left operand.
right: The right operand.

注意:
對(duì)于所有變量運(yùn)算函數(shù)，本函數(shù)的參數(shù)可以是 PHP 內(nèi)置的類型（整數(shù)，字符串，浮點(diǎn)數(shù)，布爾型或者 null），或者是一個(gè) COM，VARIANT 或者 DOTNET 類的實(shí)例。PHP 內(nèi)置類型將會(huì)使用和構(gòu)造variant類相同的規(guī)則轉(zhuǎn)換成變量。COM 和 DOTNET 對(duì)象的值將會(huì)取其默認(rèn)屬性并被當(dāng)成變量值使用。

變量運(yùn)算函數(shù)是同名函數(shù)在 COM 庫中的外包；有關(guān)此類函數(shù)的更多信息參見 MSDN 庫。PHP 函數(shù)命名有少許區(qū)別，例如 PHP 中的 variant_add() 對(duì)應(yīng)于 MSDN 文檔中的 VarAdd()。

返回值

**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`

錯(cuò)誤／異常

Throws a com_exception on failure.

參見

variant_and() - Performs a bitwise AND operation between two variants
variant_xor() - Performs a logical exclusion on two variants