(PHP 5, PHP 7, PHP 8)
variant_div — Returns the result from dividing two variants
leftThe left operand.
rightThe right operand.
注意:
對于所有變量運算函數(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，浮點數(shù)，布爾型或者
null），或者是一個 COM，VARIANT 或者 DOTNET 類的實例。PHP 內(nèi)置類型將會使用和構(gòu)造variant類相同的規(guī)則轉(zhuǎn)換成變量。COM 和 DOTNET 對象的值將會取其默認(rèn)屬性并被當(dāng)成變量值使用。變量運算函數(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() 對應(yīng)于 MSDN 文檔中的
VarAdd()。
| 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 |
Throws a com_exception on failure.