Apk Parser is a pure php library to read some information from Android .apk files. Has some issues and need some enhancements for next versions. If you want to contribute this project read this blogpost
Sending email messages to many recipients is an heavy duty task. But using smart optimizations it is possible to send messages to millions of users in a reasonable amount of time from your own PHP server without consuming too much resources.
Read this article to learn how the MIME E-mail message sending class takes advantages to efficiently send personalized messages to many recipients.
YouTube allows you to embed videos in external site pages, but you need to know the identifier of the specific video you want to embed. This class can automatically embed trailers of movies from YouTube just giving the movie names.