PHP 8.1.0 Beta 1 available for testing

ArrayIterator::offsetExists

(PHP 5, PHP 7, PHP 8)

ArrayIterator::offsetExistsCheck if offset exists

说明

public ArrayIterator::offsetExists(mixed $index): bool

Checks if the offset exists.

警告

本函数还未编写文档,仅有参数列表。

参数

index

The offset being checked.

返回值

true if the offset exists, otherwise false

参见

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