PHP OAuth API authorizes user access using the OAuth protocol. It abstracts OAuth 1.0, 1.0a, and 2.0 in the same class. It provides built-in support for popular OAuth servers: Bitbucket, Box.net, Disqus, Dropbox with OAuth 1.0 and 2.0, Eventful, Facebook, Fitbit, Flickr, Foursquare, github, Google with OAuth 1.0a and OAuth 2.0, Instagram, LinkedIn, Microsoft, Reddit, RightSignature, Salesforce, Scoop.it, StockTwits, SurveyMonkey, Tumblr, Twitter, VK, Withings, XING, and Yahoo!. Every other OAuth server is supported by setting an endpoint URLs and other parameters using specific class variables. The class can also send requests to an API using the previously-obtained OAuth access token. For servers which support offline access, the class can renew expired tokens automatically using refresh tokens.
PHPDevel Link Checker is a PHP script to check Web sites for broken links, invalid URLs, missing MIME, charset, titles, descriptions, canonical URLs, and more. The script checks for errors in HTML files, CSS files, robots.txt files, sitemaps, and HTTP headers of all files. It is suitable for checking large Web sites of up to several million URLs. Crawling speed is up to 10-15 URLs/second on a single-core CPU.
Textlocal API2 Wrapper is a PHP class that can send SMS or MMS messages using the Textlocal API over HTTP. It can send an SMS or MMS message to a given number, send a message to a group of contacts, create groups of contacts, add contacts to a group, retrieve the available groups, delete contacts from a group, delete groups, retrieve message history, etc.
jQuery.pidCrypt uses HTML5 localStorage or sessionStorage for implementing an RSA public keyring within the browser, allowing transparent asymmetric encryption of form submissions while protecting the keys with AES symmetric encryption. It is easy to implement and has numerous configurable options for pre, post, and error-handling callbacks.