Simple Promise

A simple PHP promise library that works synchronously.

Note

Please note that this library cannot be used in Asynchronous projects, projects like ReactPHP or Amphp.

Installation

Make sure that you have composer installed Composer.

If you don't have Composer run the below command

curl -sS https://getcomposer.org/installer | php

Run the installation

composer require ahmard/simple-promise ^1.0

Usage

<?php
use SimplePromise\Deferred;

require 'vendor/autoload.php';

function test($number)
{
    $deferred = new Deferred();
    
    if ($number > 2){
        $deferred->resolve('Succeeded');
    }else{
        $deferred->reject('Failed');
    }
    
    return $deferred->promise();
}

test(1)->then(function ($data){
    echo $data;
})->otherwise(function ($error){
    echo $error;
});

Examples