variant_div
(PHP 5, PHP 7)
variant_div — Returns the result from dividing two variants
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
If | Then |
---|---|
Both expressions are of the string, date, character, boolean type | Double is returned |
One expression is a string type and the other a character | Division and a double is returned |
One expression is numeric and the other is a string | Division and a double is returned. |
Both expressions are numeric | Division and a double is returned |
Either expression is NULL | NULL is returned |
right is empty and left is anything but empty |
A com_exception with code DISP_E_DIVBYZERO is thrown |
left is empty and right is anything but empty. |
0 as type double is returned |
Both expressions are empty | A com_exception with code DISP_E_OVERFLOW is thrown |