MongoDB\BSON\PackedArray::offsetExists
(mongodb >=1.17.0)
MongoDB\BSON\PackedArray::offsetExists — Returns whether a index is present in the array
说明
final public MongoDB\BSON\PackedArray::offsetExists(
mixed $key):
bool
参数
key-
The index to look for in the array.
返回值
Returns true if the index is present in the array and false otherwise.
