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This article focuses on "what is the use of php iterator iterator", interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "what's the use of php iterator iterator?"

Description

1. When the object of foreach is implemented, it is called automatically, which defines the traversal method.

2. Iterator is a predefined interface class of php, which can be used directly. Iterator {} is a subclass of Traversable {}.

Traversable {} is an interface that checks whether a category can use foreach.

Example

Iterator extends Traversable {abstract public current (): mixed-returns the current element abstract public key (): scalar-returns the key of the current element abstract public next (): void-moves forward to the next element abstract public rewind (): void-returns to the first element of the iterator abstract public valid (): bool-checks whether the current position is valid} so far, I believe you have a better understanding of "what is the use of php iterator iterator" You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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