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[Directory](/) 2. / 3. curesaba/php-subscriber ActiveLibrary curesaba/php-subscriber ======================= A PHP client library implementing a PubSubHubbub (WebSub) subscriber with hub.secret support. 1.4.0(11mo ago)16Apache-2.0PHPPHP ~5.4 || ~7.0 || ~8.0 Since Jun 5Pushed 11mo agoCompare [ Source](https://github.com/CureSaba/php-subscriber)[ Packagist](https://packagist.org/packages/curesaba/php-subscriber)[ Docs](https://github.com/CureSaba/php-subscriber)[ RSS](/packages/curesaba-php-subscriber/feed)WikiDiscussions master Synced 1mo ago READMEChangelog (2)DependenciesVersions (3)Used By (0) PHP PubSubHubbub (WebSub) Subscriber ==================================== [](#php-pubsubhubbub-websub-subscriber) This PHP library implements a subscriber for PubSubHubbub (WebSub) with support for the `hub.secret` parameter for secure HMAC signature verification and flexible configuration options including `verify_token`. Originally written by [Josh Fraser](http://joshfraser.com) and currently maintained by [CureSaba](https://github.com/CureSaba). Released under the Apache 2.0 License. **Official package:** [pubsubhubbub/subscriber](https://github.com/pubsubhubbub/php-subscriber) **Maintained fork:** [curesaba/php-subscriber](https://github.com/CureSaba/php-subscriber) --- Install ------- [](#install) Update your `composer` require block: ``` "require": { "curesaba/php-subscriber": "*" } ``` Or install via Composer: ``` composer require curesaba/php-subscriber ``` --- Usage ----- [](#usage) ``` use \Pubsubhubbub\Subscriber\Subscriber; $hub_url = "http://pubsubhubbub.appspot.com"; $callback_url = "https://yourdomain.example/endpoint"; $secret = "your-very-random-string"; // Used for HMAC verification $verify_token = "your-verify-token"; // Used to validate intent verification requests // create a new subscriber with flexible options (all parameters optional except hub_url and callback_url) $s = new Subscriber( $hub_url, $callback_url, false, // credentials (optional) $secret, // hub.secret (optional) 'async', // verify mode (optional, default 'async') $verify_token, // verify_token (optional) 3600 // lease_seconds (optional) ); $feed = "http://feeds.feedburner.com/onlineaspect"; // subscribe to a feed $s->subscribe($feed); // unsubscribe from a feed $s->unsubscribe($feed); // You can also set properties after construction: $s->setVerifyToken('another-token')->setLeaseSeconds(7200); ``` ### Parameters [](#parameters) - **$hub\_url**: The PubSubHubbub (WebSub) hub endpoint. (Required) - **$callback\_url**: Your endpoint to receive notifications. (Required) - **$credentials**: (Optional) HTTP Basic Auth credentials for the hub. - **$secret**: (Optional but recommended) Secret string for verifying HMAC signatures (`hub.secret`). - **$verify**: (Optional) Verification mode `"async"` or `"sync"`. Default: `"async"`. - **$verify\_token**: (Optional) Token for intent verification. - **$lease\_seconds**: (Optional) Subscription lease duration in seconds. #### Property Setters [](#property-setters) All parameters (except `$google_key`) can also be set or changed after instantiation using the following setter methods: - `setHubUrl($hub_url)` - `setCallbackUrl($callback_url)` - `setCredentials($credentials)` - `setSecret($secret)` - `setVerify($verify)` - `setVerifyToken($verify_token)` - `setLeaseSeconds($lease_seconds)` --- HMAC Signature Verification --------------------------- [](#hmac-signature-verification) When using `hub.secret`, notifications sent from the hub will include an `X-Hub-Signature` header. You should verify this in your callback endpoint: ``` $body = file_get_contents('php://input'); $signature = $_SERVER['HTTP_X_HUB_SIGNATURE'] ?? ''; $expected = 'sha1=' . hash_hmac('sha1', $body, $secret); if (hash_equals($expected, $signature)) { // Signature valid } else { // Signature invalid } ``` --- License ------- [](#license) Apache License 2.0 ### Health Score 30 — LowBetter than 64% of packages Maintenance51 Moderate activity, may be stable Popularity6 Limited adoption so far Community14 Small or concentrated contributor base Maturity43 Maturing project, gaining track record Bus Factor3 3 contributors hold 50%+ of commits How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~2 days Total 2 Last Release 345d ago ### Community Maintainers ![](https://www.gravatar.com/avatar/a073861a067ee4138aa9e8a6f34c3868abbf3c5619414a326c41a49f89040f4b?d=identicon)[curesaba](/maintainers/curesaba) --- Top Contributors [![texdc](https://avatars.githubusercontent.com/u/1590605?v=4)](https://github.com/texdc "texdc (7 commits)")[![pfefferle](https://avatars.githubusercontent.com/u/2373?v=4)](https://github.com/pfefferle "pfefferle (6 commits)")[![CureSaba](https://avatars.githubusercontent.com/u/94890302?v=4)](https://github.com/CureSaba "CureSaba (6 commits)")[![themel](https://avatars.githubusercontent.com/u/160316?v=4)](https://github.com/themel "themel (4 commits)")[![maksverver](https://avatars.githubusercontent.com/u/595620?v=4)](https://github.com/maksverver "maksverver (3 commits)")[![rmruano](https://avatars.githubusercontent.com/u/1115642?v=4)](https://github.com/rmruano "rmruano (2 commits)")[![CupOfTea696](https://avatars.githubusercontent.com/u/7327050?v=4)](https://github.com/CupOfTea696 "CupOfTea696 (1 commits)")[![MR4online](https://avatars.githubusercontent.com/u/17498992?v=4)](https://github.com/MR4online "MR4online (1 commits)")[![karptonite](https://avatars.githubusercontent.com/u/132278?v=4)](https://github.com/karptonite "karptonite (1 commits)")[![harikt](https://avatars.githubusercontent.com/u/120454?v=4)](https://github.com/harikt "harikt (1 commits)")[![danmichaelo](https://avatars.githubusercontent.com/u/434495?v=4)](https://github.com/danmichaelo "danmichaelo (1 commits)") --- Tags datasubscriberfeedspubsubhubbubwebsub ### Embed Badge ![Health badge](/badges/curesaba-php-subscriber/health.svg) ``` [![Health](https://phpackages.com/badges/curesaba-php-subscriber/health.svg)](https://phpackages.com/packages/curesaba-php-subscriber) ``` ### Alternatives [fakerphp/faker Faker is a PHP library that generates fake data for you. 4.0k358.5M3.5k](/packages/fakerphp-faker)[nelmio/alice Expressive fixtures generator 2.5k43.4M133](/packages/nelmio-alice)[dflydev/dot-access-data Given a deep data structure, access data by dot notation. 720359.1M86](/packages/dflydev-dot-access-data)[doctrine/mongodb-odm PHP Doctrine MongoDB Object Document Mapper (ODM) provides transparent persistence for PHP objects to MongoDB. 1.1k23.3M302](/packages/doctrine-mongodb-odm)[theofidry/alice-data-fixtures Nelmio alice extension to persist the loaded fixtures. 32328.5M70](/packages/theofidry-alice-data-fixtures)[pubsubhubbub/subscriber pubsubhubbub implementation of subscriber. 32100.2k](/packages/pubsubhubbub-subscriber) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)