guzzle/promises

Features

• Specification Compliance - Implements the standardized Promises/A+ specification to ensure interoperability between different promise libraries.
• Asynchronous Task Managers - Serves as a framework for coordinating concurrent non-blocking tasks and their eventual resolution within a PHP environment.
• Promise Implementations - Provides a standard-compliant promise implementation for writing non-blocking code and handling deferred values in PHP.
• Event Loop Integration - Processes a global queue of pending operations to maintain constant stack size while integrating with the event loop.
• Event Loop Integrations - Implements a global queue for pending handlers to ensure compatibility with asynchronous event-driven runtimes in PHP.
• Linear Asynchronous Syntax - Simulates asynchronous await patterns to allow non-blocking code to be written in a linear, synchronous-looking style.
• Asynchronous Flow Coordination - Coordinates multiple concurrent tasks and their eventual resolution using a promise-based system.
• Asynchronous PHP Development - Provides a comprehensive toolkit for managing non-blocking operations and concurrent tasks in PHP.
• Manual Promise Resolution - Triggers the fulfillment or rejection of pending tasks by delivering specific values or errors to callbacks.
• Promise-Based Chains - Links asynchronous operations into sequences that automatically propagate results and errors.
• Asynchronous Operation Chaining - Implements a sequential execution pipeline by returning new promise objects from handlers.
• Queue-Based Handler Dispatch - Processes resolved callbacks through a global task queue to prevent stack overflow during execution.
• Execution Queues - Utilizes an execution queue to process pending promise handlers and ensure compatibility with the event loop.
• Handler Execution Queues - Utilizes a global queue to process pending promise handlers, maintaining a constant stack size during execution.
• Dependency-Aware Task Orchestration - Orchestrates the execution order of asynchronous tasks based on dependency constraints through promise chaining.
• PHP Coroutine Runtimes - Enables writing non-blocking PHP code in a linear style by simulating asynchronous coroutines.
• Task Schedulers - Provides mechanisms for scheduling background operations and managing execution timing through external queue injection.
• Foreign Promise Interoperability - Integrates foreign objects implementing the then method to allow disparate promise libraries to work together.
• Synchronous Value Extractors - Offers a mechanism to force synchronous completion of a promise to retrieve the final value or throw an exception.
• Synchronous Execution Blocking - Provides mechanisms to hold the execution thread open until an asynchronous task completes.
• Duck Typing Patterns - Integrates foreign objects using behavior-based matching by checking for a then method instead of class inheritance.
• Forced Synchronous Completion - Provides a mechanism to block execution until a promise resolves to retrieve the final value synchronously.
• Sequential Task Execution - Executes a collection of promises according to a specified concurrency limit to ensure orderly execution.
• Asynchronous Task Executors - Allows the definition of custom queues to control the dispatch and execution of asynchronous futures.
• Concurrent Request Limits - Provides mechanisms to restrict the absolute number of active concurrent asynchronous operations to optimize resource usage.
• Update Completion Promises - Blocks execution until an asynchronous operation completes to return a final value or throw an exception.

Istoric stele