SplFixedArray::offsetExists
(PHP 5 >= 5.3.0, PHP 7)
SplFixedArray::offsetExists — Returns whether the requested index exists
说明
public SplFixedArray::offsetExists
( int
$index
) : bool
Checks whether the requested index index
exists.
参数
-
index -
The index being checked.
返回值
TRUE if the requested index exists, otherwise FALSE