SplFixedArray::offsetExists
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplFixedArray::offsetExists — Returns whether the requested index exists
说明
Checks whether the requested index index
exists.
参数
index-
The index being checked.
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplFixedArray::offsetExists — Returns whether the requested index exists
Checks whether the requested index index
exists.
indexThe index being checked.