(PHP 5, PHP 7)
variant_cmp — Compares two variants
Compares left with right.
This function will only compare scalar values, not arrays or variant records.
leftThe left operand.
rightThe right operand.
lcidA valid Locale Identifier to use when comparing strings (this affects string collation).
flags
flags can be one or more of the following values
OR'd together, and affects string comparisons:
| value | meaning |
|---|---|
NORM_IGNORECASE |
Compare case insensitively |
NORM_IGNORENONSPACE |
Ignore nonspacing characters |
NORM_IGNORESYMBOLS |
Ignore symbols |
NORM_IGNOREWIDTH |
Ignore string width |
NORM_IGNOREKANATYPE |
Ignore Kana type |
NORM_IGNOREKASHIDA |
Ignore Arabic kashida characters |
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()。
Returns one of the following:
| value | meaning |
|---|---|
VARCMP_LT |
left is less than
right
|
VARCMP_EQ |
left is equal to
right
|
VARCMP_GT |
left is greater than
right
|
VARCMP_NULL |
Either left,
right or both are NULL
|