# variant_idiv

(PHP 5, PHP 7, PHP 8)

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

### 说明

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

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

### 参数

`left`

  The left operand.

`right`

  The right operand.

> 注意:

> 对于所有变量运算函数，本函数的参数可以是 PHP 内置的类型（整数，字符串，浮点数，布尔型或者 `null`），或者是一个 COM，VARIANT 或者 DOTNET 类的实例。PHP 内置类型将会使用和构造variant类相同的规则转换成变量。COM 和 DOTNET 对象的值将会取其默认属性并被当成变量值使用。

> 变量运算函数是同名函数在 COM 库中的外包；有关此类函数的更多信息参见 MSDN 库。PHP 函数命名有少许区别，例如 PHP 中的 variant_add() 对应于 MSDN 文档中的 `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

### 错误／异常

Throws a com_exception on failure.

### 参见

- variant_div() - Returns the result from dividing two variants

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