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Example code of miquido/observable

Informations about the package observable

Build Maintainability Test Coverage MIT Licence

Observable

Set of classes for data streams.

Installation

Use Composer to install the package:

Code Samples

Please also check miquido/csv-file-reader library for more real-life examples.

Create and subscribe to a data stream

You can start with simple Miquido\Observable\Stream\FromArray::create method.

Manipulate data in a stream with Operators

Operators can be useful when you want to process the data in the stream before notifying observers. Operators do not interfere with source stream, every operator returns new stream that can be subscribed independently.

You can also add multiple pipes:

Using a Subject

Subject acts both as an observer and as an observable. See an example below:

List of build-in operators

ArrayCount operator

Transforms array item to number with count value.

BufferCount operator

Groups individual items into an array of provided size.

BufferUniqueCount operator

Similar to BufferCount, but removes duplications.

Count operator

Count all items emitted into the stream.

Filter operator

Removes all values for which provided callback returns false.

Flat operator

If item in a stream is an array, Flat converts this array into set of individual items.

Let operator

Does nothing, do the stream, just fires provided callback for every item in the stream and returns unchanged value.

Map operator

Transform each item in the stream into new value.

Reduce operator

Scan operator

Like Reduce, but observer receives a value after each Scan call.

Sum operator

Sums all items in the stream.

Contributing

Pull requests, bug fixes and issue reports are welcome. Before proposing a change, please discuss your change by raising an issue.

All versions of observable with dependencies

PHP Build Version
Package Version
Requires php Version ^7.1.3
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