COM 函数
PHP 手册

variant_idiv

(PHP 5)

variant_idivConverts variants to integers and then returns the result from dividing them

说明

mixed variant_idiv ( mixed $left , mixed $right )

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

参数

left

The left operand.

right

The right operand.

Note: As with all the variant arithmetic functions, the parameters for this function can be either a PHP native type (integer, string, floating point, boolean or NULL), or an instance of a COM, VARIANT or DOTNET class. PHP native types will be converted to variants using the same rules as found in the constructor for the VARIANT class. COM and DOTNET objects will have the value of their default property taken and used as the variant value.
The variant arithmetic functions are wrappers around the similarly named functions in the COM library; for more information on these functions, consult the MSDN library. The PHP functions are named slightly differently; for example variant_add() in PHP corresponds to VarAdd() in the MSDN documentation.

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


COM 函数
PHP 手册