(PHP 5, PHP 7, PHP 8)
variant_div — 返回两个变量相除的结果
说明
variant_div(mixed $left, mixed $right): variant
| 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 |