variant_idiv

(PHP 5, PHP 7, PHP 8)

variant_idiv — Converts variants to integers and then returns the result from dividing them

說(shuō)明

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

Converts left and right to integer values, and then performs integer division.

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(kù)中的外包；有關(guān)此類函數(shù)的更多信息參見 MSDN 庫(kù)。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 Integer Division Rules
If Then
Both expressions are of the string, date, character, boolean type Division and integer is returned
One expression is a string type and the other a character Division
One expression is numeric and the other is a string Division
Both expressions are numeric Division
Either expression is NULL NULL is returned
Both expressions are empty A com_exception with code DISP_E_DIVBYZERO is thrown

錯(cuò)誤／異常

Throws a com_exception on failure.

參見