PHP Manual
COM 函数
Converts variants to integers and then returns the result from dividing them

variant_idiv

(PHP 5, PHP 7)

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

说明

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

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

参数

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

Note:

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

参见

variant_div() - Returns the result from dividing two variants

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